I found this (and a few it's brothers of different sizes) among the Tupperware at a local second hand shop the other day and I thought it might just work as a "travel" bowl, so I grabbed it, and for $1 it works very well.
It's 4" across at the mouth (total diameter with the lip is 5"), collapses to a little over 3/4" thick, and even has a lid. It's not actually Tupperware, the brand on the bottom is "Progressive" and it's not actually that pink, that's just the way the lighting was.
It's 4" across at the mouth (total diameter with the lip is 5"), collapses to a little over 3/4" thick, and even has a lid. It's not actually Tupperware, the brand on the bottom is "Progressive" and it's not actually that pink, that's just the way the lighting was.