I also had an old pallet that I picked up from a dumpster a couple months ago that I wanted to do a "project" with, but got busy!
So...2 ideas collided! LOL
I tore apart the pallet and just started cutting...
Voila..SIMPLE! And something that you can make big, or small depending on the space you need to fill!
I used liquid nail wood glue to piece the letters together! I used what I had at home, but I would suggest getting "instant" liquid nail to hurry along the process. I'm impatient and hated waiting overnight for the stinkin' glue to dry! You can also use gorilla glue!