Thanks!!
The cupholder was from the little known and hard to find automotive section at IKEA, lol.
IKEA cup holder 3.jpgIKEA cup holder 1.jpg
Seriously. From IKEA. It was part of their kitchen organizing accessories line. And was $0.99. I haven't been in there looking for a new one for a while, but last I heard they don't have these anymore.