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Turn your designs into products without printing or shipping them yourself

Upload your design and pick a product from the catalog. AI creates the mockups, and your design is checked for copyright risk. When an order comes in, our partner producers in the US print it.

AI mockups · 5 images
Ready-to-sell listing images from your design
What sells

Don't leave what to design up to guesswork

The idea engine scans what buyers are searching for and which topics are trending on social media, and gives you a daily summary. Ideas pass copyright and platform policy checks. You turn an idea you like into a product draft, and AI can create the design draft if you want. That way, you don't spend your effort on a topic nobody is searching for.

  • Daily trend summary
  • Ideas with copyright or policy risk are filtered out
  • From idea to product draft in one step
Today's trends
Retro scuba t-shirt
Mountain and moon tank
Sign language heart t-shirt
From design to sale

Your design reaches the customer in 7 steps

  1. 1
    Idea

    Start from the daily trend summary or your own idea. Ideas in the summary pass copyright and platform policy checks.

  2. 2
    Design

    Upload your design in the product wizard; AI can also create designs if you want. Choose the product and its color and size variants, then run a copyright check.

  3. 3
    Listing and sync

    Mockups and an SEO-ready listing are prepared and copied between your connected platforms. Drafts first, live with your approval.

  4. 4
    Order

    The customer buys and the order lands in your dashboard automatically.

  5. 5
    Right design, printed

    The right design file for the order is found and printed by our partner producers.

  6. 6
    Quality check

    Every product's quality is checked and guaranteed.

  7. 7
    Delivery

    The product is packed and shipped, and the customer follows it on a branded tracking page.

Mockups

Ready-to-sell mockups without a photo shoot

AI creates ready-to-sell mockups from your design: 5 images for 3 credits. You can also get a 10-second video from a photo: 5 credits. You show the same design on different products and colors without printing samples or doing a shoot.

  • 5 mockups: 3 credits
  • 10-second video: 5 credits
  • Crop fixes and photo review for Etsy
app.custombull.com
Custombull design studio
Copyright and copy risk

The line between inspiration and copying

A design can resemble a well-known brand or character without you realizing it. The copyright check compares your design and title against that kind of similarity and explains the reason for any risk. You fix it before publishing, and your shop stays protected from listing removals.

  • Design and title are checked together
  • The reason for the risk is spelled out
  • 1 credit per product
Copyright check
Mountain and moon t-shirtNo issues
Retro scuba t-shirtNo issues
Ghost doctor t-shirtNo issues
?Design resembling a famous movie emblemRisky
Which design, which product

Choose products based on your design type

The same design doesn't work equally well on every product. These pairings make it easier to start.

Text designs

Short, funny or heartfelt phrases look great on t-shirts and women's tanks. Gildan 64000 t-shirt from $6.50 with printing, Next Level 1533 tank from $9.50.

Illustration and photo designs

Designs that need a large print area stand out on sweatshirts and hoodies. Gildan 18000 from $12.00, Gildan 18500 from $15.00.

Family and personal designs

For mom, dad and baby themes, use baby bodysuits and kids and youth sizes.

Business and event designs

For logos, events and celebrations, there are tote bags, aprons and banners.

What will I earn?

See what you keep from each sale.

Choose what you sell, where you sell it and at what price. We subtract the product and printing cost and the Etsy, eBay or Shopify fee, and show you what's left.

What do you sell?
Where do you sell?
$
units
What you keep per month (estimate)
$1,410
Customer pays$24.99
Product and printing (Custombull)-$6.50
Etsy fee-$2.82
You keep per sale$15.67
The same Gildan 64000 tee starts at $10.10 on Printify and $7.50 on Printful; on Custombull it's $6.50 with no monthly membership.

A month is counted as 30 days. Shipping is assumed to be paid by the customer. Taxes and ad spend are not included. Fee rates are those in effect for the US in September 2026.

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Questions designers ask

Who owns the rights to my designs?

The designs you upload are yours. Custombull uses your design to print your orders.

Do I need to resend my design file for every order?

No. When an order comes in, the right design file is found automatically and prepared for printing.

Can I create mockups without printing a sample?

Yes. AI creates ready-to-sell mockups from your design. 5 images cost 3 credits.

Does the copyright check show my design to others?

No. The check looks at whether your design resembles well-known brands and characters and shows the result only to you.

What are credits?

Credits are the unit used for AI tools. Bronze includes 100 credits and Gold includes 400 credits every month. You can also buy credit packs; purchased credits never expire.

Can I be confident about print quality?

Custombull checks and guarantees the quality of every product. If a defective item reaches your customer, you get a no-questions-asked refund or a free reprint.

Turn your first design into a product

Create a free account, upload your design and send it to your shop. No credit card required, cancel anytime.

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