So there are only 4 other kids in L's class besides him, and I didn't feel like buying a whole box of valentines.

We just had his birthday party and i have some of his thank you cards left. They're these: http://www.tinyprints.com/product/40949/thank_you_cards_fun_little_one_blaze.html

I was going to write on them

"For being my friend"
"For being so sweet"
"For being a great teacher"

etc...

but is that lame?