T.F.
Here is what I've done in the past-- go to Bath and Body Works (and hope for a sale!!!) and pick up the least expensive ones you can find but get the scented hand sanitizers or lotions. Pick up enough for each of them to have one and let them pick the scent they like the best by just putting them all in a basket with a note from you for each of them to pick one.
Another thing you can do is get each of them a scratch off lottery ticket. Pretty inexpensive for you and fun for them!
If you do decide to do a homemade goodie, put some in individual baggies so there is one for each of them.