craftgrrl | Gift/shopping bag recommendations for small items?

I am going to be selling some of my clay doodles at an upcoming convention. I'm planning on putting each one into a flip-top box (like a box a mug would come in, but smaller) with tissue paper for safe-keeping while the buyer wanders the con, with a stamp of my logo on each box. I found a good place online offering decent prices for bulk boxes (papermart.com). I got 100 because I'll have no problems using them in the future. Even with their rather high shipping rate I'm saving about $50 compared to my local crafts store prices.

I also would like to get some little shopping bags for the boxes to go in to make carrying at the con easier (the little boxes are 2"x3"x3"). I've found a lot of places who sell them in bulks of 100-200, but I'm really only going to need 30 or so and hate to waste money on something I won't use. I would prefer a bag with a handle, simple brown or white paper would work (so I could stamp that too). Does anyone have any suggestions online of where I could find a smaller number? (I've checked Hobby Lobby, Michael's, Wal-Mart - they don't really have what I'm looking for, for a decent enough price.)

This is the first time I'm trying to sell something at a convention, and I'm trying to think of ways to make it easiest on the buyer.

And so this is not text-only,