I love this one also! Just add Lucky Charms cereal!
A bag of Starburst! Yum!
I love the cute owl. You could just put this on their desks with a pencil, or I made it with a bag of M&M's candy.
Add a pack of gum, or a bag of bubble gum!
A bag of gummy bears!
Add a glow in the dark bracelet or a highlighter!
I found sample pictures of most of these ideas on Pinterest or examples at these websites: