This was really fun! I didn't get to play all the way (I loved assembling the letter, but the tape didn't seem to work. I'm sure if I had more time, I would've got it! I kinda want to come back to it, actually...
Fun idea and I liked moving things around.
Did you create all the SFX and music as well?
Really clever job on the mechanics, and it's so well put together! Great job!