A funny raccoon shirt has to do more than slap a cartoon face on a blank. The joke has to land at conversational distance, and the design has to read raccoon, not vague woodland mammal.
Joke legibility at three feet. The pun or caption needs to be readable across a coffee shop table without leaning in. Designs that bury the gag in tiny script lose the social payoff that makes a funny raccoon shirt worth wearing.
Clear bandit silhouette. The mask, ringed tail, and little hands have to be unambiguous. Designs that drift toward generic critter shape leave the niche-insider read on the table, especially for the raccoon mom or raccoon dad audience who want the species recognized instantly.
Tone match to the trash panda register. The humor can run dumpster-gremlin chaos, friend-shaped wholesome, or feral-era unhinged. Each design should commit to one register cleanly instead of mixing signals that mute the joke.
Gift-readiness across audiences. A design should work for the wildlife rehabilitator who finds the trash-life joke affectionate, the kid who just wants the cute bandit, and the coworker who collects animal-pun shirts. Designs that lean too hard on adult-only humor narrow the gift window.
Composition with breathing room. Layouts that give the raccoon space to read at a glance hold up better than packed compositions that smush the bandit against text walls and lose the species cue.