I meant to add that Garden Ridge Pottery is a huge place in the Austin area that has tons of clear glass containers (with tops) in large varieties and sizes and are inexpensive. Lots of choices in that huge place.

You can also find some rather small clear glass candy dishes with lids there for maybe only $3.00 or so. I have bought those to engrave on from that particular store in the Austin area ...and they probably still have them in stock. They don't hold much... maybe a cup of so of the mix, but can be used for other things after the mix is eaten.

Also at Garden Ridge: You can probably find small container boxes that are designed to hold about a cup or two of whatever... that look like what are known commonly as Chinese food take-out boxes with handles, but are in colors and designed for gift packaging.

I think this is all of my good ideas! :)
Best Wishes,
Amber