I have always been opposed to party favor bags with a bunch of junk but I feel like we have to give out something. DS's party is in roughly 20 days - what are some of the best ideas/ party favors you have heard of/received that I can pull off in 20 days? Mind you I have a huge work deadline, so I don't really have 20 days to execute... just need to buy something quick that can ship and I can get it asap !

For me, we've got small packets of LEGO from the last party we were at, but those things are expensive, haha. (My wishful budget is $3-5 each) I've also gotten books. Maybe I can buy 20 activity books from amazon and tag along with a pencil? Any other ideas? We are doing a bowling party so anything along that line is great too.