I made this letter game for the boys. My plan was a board of some kind where they could put the uppercase letters in alphabetical order and then place the lowercase letters on top. After our Lego advent was done, I decided to keep the plastic tray with 24 sections in it for sorting games. It works great for this alphabet game, we just leave Y and Z on the table.
I made the scallop circles with SU!'s scallop circle punch and then used a smaller circle punch for the lowercase letters. I used some stickers, which were just plain awful. It came out fine though, after the hassle and the littles like the game.