party favor ideas for a 6 year olds birthday

I always do big fun parties for my kids, i love it, the kids love it, its always a great time, well this year we are kinda on a tight budget, DH hurt his leg and was on light duty working only half days for awhile so I have not had a chance to plan a party, well ive been working crazy hours and am finaly about caught up, and can throw a party, but I need party favor ideas mainly but anything will help, I normaly order most everything but and doing a DIY party this year, here are some of what I plan on doing, the cake is going to be a round cake with kitkats around the outside and topped with m&ms (my son wants it) I have a cookie sheet that makes planes and rockets and race car shaped cookies, im going to use it to make crayons. Im going to buy rainbow colors of licorice and put them in a baggie to look like a rainbow then put mini marshmellows in for the clouds, and thats realy all I got, so any ideas help, but they cant be too time consuming, i wont have the money to buy the stuff for the party until 3 days before the party so everything will be last minute  so ya, help me please

my 6yr old boys party was star wars. we did these plastic star wars cups from wal-mart, put some candy and stickers in them. kids loved them. easy, fast and cheap, i bought a big party mix of candy and a pack of sticker sheets.