Do casinos buy special decks for Spanish 21?

...or do they just purchase regular decks from their suppliers and manually remove the individual 10's from each deck?

I was just musing at how fun it would be to find a casino that forgot to take the 10's out - assuming their dealers make the Espa�ola-style preparations themselves. (Then again, of course, someone'd probably say something with the first 10 that popped out too!)