It's a Pyrex one, and I got it for $8.
I also found these leather bangles. Notice the Mayan? Incan? pattern on the top bangle (yes, I really need to do my research as to what culture this is actually from!!).
I'm pretty sure that both were donated by the same person, they're too similar to just be there together by coincidence. Strangely, one was 99c and the other was $1.99 even though they are so similar. Love that random pricing system!!