My version isn't half this cute, but this inspired me to make a matching game to help H with her lowercase letters. H already had lowercase letters I'd made her on index cards, but was having trouble with a few letters--b, d, p, q, etc. I put capital letters on envelopes so she can match the lowercases and uppercases.
Feed the penguin! Fun DIY preschool game. - could have cards that say "Fred the penguin only eats circle fish" or "Harvey the penguin only eats square fish" also could do with letters "Patty only eats vowels" etc