Here's what I did:
get a can with a pop-top lid and open it from the bottom...leaving the pop top part untouched.
Wash out the can.
Fill with personal items...a note, favorite candy, a gift card, whatever you want.
Glue the bottom back on to the can so that it looks unopened. Super glue worked the best for me.
Cover the can with cute paper to go along with the occasion.
The saying on mine says "A Pop-Top for a Top-Pop"
I am so glad that my kids have such a Top Pop!