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T-shirt Designer – Custom Tshirt Artist

custom t-shirt design

From: Murals & Illustrations / Specific to:

T-Shirt Designer | Custom Graphics by HAPPY DECAY

HAPPY DECAY is a professional T-shirt designer creating custom graphics for brands, businesses, and creative projects. Specialising in bold, eye-catching illustration, HAPPY DECAY designs artwork specifically for apparel — combining strong visual impact with practical knowledge of garment printing and production.

tshirt designer
T-shirt designer

As an experienced T-shirt designer, HAPPY DECAY works closely with clients to develop unique designs that reflect their brand identity and connect with their audience. From streetwear labels and merchandise lines to event apparel and promotional campaigns, each design is tailored to suit the purpose, style, and target market.

With a background in graphic design and digital illustration, HAPPY DECAY understands how to create artwork that translates effectively onto fabric. This includes consideration of print methods such as screen printing and digital printing, as well as layout, colour selection, and placement to ensure high-quality results.

custom t-shirt design
Custom t-shirt design for Sharpie

Whether you’re looking for a one-off custom T-shirt design or a full collection of apparel graphics, HAPPY DECAY offers a creative and reliable design service focused on delivering wearable, commercially effective artwork.

t-shirt design consent illustration
T-shirt design consent illustration
Sticker design for the ACT consent campaign
T-shirt artwork used as a sticker for the ACT consent campaign

If you’re searching for a T-shirt designer who can bring original ideas to life and help your brand stand out, HAPPY DECAY is ready to collaborate.

Custom T-Shirt Artist for Brands

HAPPY DECAY is a custom T-shirt artist specialising in bold, playful illustration designed for apparel. Working at the intersection of art and fashion, HAPPY DECAY creates distinctive graphics that translate seamlessly onto clothing, helping brands stand out through unique, wearable designs.

pink rabbit tshirt
Custom artist t-shirt screen print on a pink t-shirt

With experience across both digital and print-based projects, HAPPY DECAY understands how to design specifically for garments — from composition and placement to colour limitations and print techniques. Each design is created with the final product in mind, ensuring it not only looks good on screen but also works effectively on fabric.

tote bag design
T-shirt artwork also used for printing on a Tote bag for Penrith City Council

HAPPY DECAY collaborates with brands, businesses, and organisations to develop custom T-shirt graphics that align with their identity while bringing a fresh, creative edge. Whether it’s for merchandise, events, campaigns, or limited-edition drops, the focus is on creating designs that people genuinely want to wear.

Known for a signature style that blends colourful, character-driven visuals with a subtle sense of quirkiness, HAPPY DECAY delivers artwork that is both engaging and commercially effective.

t-shirt artist
HAPPY DECAY T-shirt artist custom design for Sharpie
sharpie illustration
T-shirt artwork for printing
KING of the BOX
Custom illustration for a t-shirt

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Muralist / Street Artist Digital Art / Illustration

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