Castlemaynia (With DVD) by Andrew Mayne

Andrew Mayne presents a new twist on the classic card castle production: CastleMaynia! A card castle that folds down small enough to fit in the palm of your hand and instantly opens to over a foot tall!
Use it to reveal a selected card
Produce it at the end of a card manipulation routine
Pull it from your wallet
Use it as a magical production
Produce one and then split it into two
CastleMaynia folds down small enough to fit into a card case along with half a deck of playing cards. 

Ships flat: 5 minutes of assembly required 

Includes 16 minute instructional DVD along with 6 routines