Here are a few items I suggest you can put in you bathroom basket for your wedding reception.

1. Tylenol Advil (Travel Size)
2. Hairspray
3. Q-tips
4. Bobby pins
5. Breath mints
6. Mouth wash accompanied with mini cups
7. Contact lens solution (Trial/Travel Size)
8. Nail file
9. Tampons
10. Sanitary Napkins
11. Hand Lotion
12. Dental Floss
13. Deodorant Spray
14. Eye Drops
15. Hair Elastics
16. Sewing Kit
17. Safety pins
18. Band-aids
19. Rolaids -Tums
20. Shout Stain Wipes or Stick Blotting Paper (Clean & Clear Blotting Paper is great!)
21. Disposable combs

I suggest going to your local Target store or 99 cents Only Store. You will find the best selection and prices at these two locations. For Target go to the travel size section to get started. Here is a website with pretty reasonable prices. It's convenient if you are too busy to pick the items. You can order them online and have them shipped directly to you. http://www.minimus.biz/default.aspx

Another fun idea is make up a cute poem and have it printed on card stock to match your other printed items. Place in a frame and place next to the basket. 

Here is an idea I wrote for a silly poem:

Wow! Can you believe it? Our Day is Finally here! We celebrate all with a Cheer! Some items for you, we have left. Enjoy! Use what you need. Freshen up, Medicate, or take a moment to breathe. And when you are done, Hurry up, Don't Delay! Please! Come back and join the fun!