I removed the tape on the battery on three sides
I drilled a hole.
I chamfered the inside edges
I glued a round 1/4-20 T nut in the hole using JB Weld epoxy.
I used a bolt and an old plastic lid with a hole in it to pull it tight for drying.
I reassembled the Nook.
The next morning I removed the bolt.
Now I have a Nook that mounts on those little bendy camera tripods.
I can also just stick in a 1/4-20 2.5" bolt as a leg.
I'm going to get an accessory arm so that I can put it on my mic stand.