Grand Slam Design Lab by TMJ

Turn your baseball and softball ideas into production-ready prompt packs in minutes.

Grand Slam Design Lab by TMJ is a standalone HTML prompt generator built for creators who design shirts, senior posters, game-day banners, towels, tumblers, sticker packs and more. No installation or subscription is required - open the file in a browser and start creating.

WHAT YOU CAN CUSTOMIZE

- Baseball, softball or combined sport mode

- 10 compact quick-start presets

- Center print, all-over print, poster, banner, tumbler, towel and sticker formats

- Athlete setup, position, layout and typography

- Multiple grunge backgrounds and baseball/softball field treatments

- Multiple visual elements in one prompt pack

- 30 MLB-inspired color references plus editable HEX colors

- Master Prompt, Separate Assets and Assembly Map outputs

- Copy, Surprise Me, Reset and TXT download controls

WHAT YOU RECEIVE

- Grand Slam Design Lab by TMJ standalone HTML generator

- 3-page Quick Start Guide PDF

- One ZIP delivery file containing both items

IMPORTANT

This is a digital prompt generator. Finished PNG designs, athlete photos, Canva templates, image-generation credits and physical products are not included. The MLB-inspired palettes are color references only; no team logos or official affiliations are included.

For best results, generate each foreground element as its own high-resolution transparent PNG, then assemble the layers in Canva or Photoshop.

INSTANT DIGITAL DOWNLOAD

Because digital files cannot be returned, all sales are final and non-refundable. You may use the prompts and original designs you create for personal projects and your own small-business finished products. You may not resell, share or distribute the generator or guide.