I've been working up a new trick, knocking of the edges and etc that uses basically two invisible/mental photography decks except all cards have backs, and the blanks just cover the faces behind. I made my own decks using large pip bikes because I will be performing this in a cabaret setting. As I'm prepping the decks I start thinking "Hmmm what if these cards aren't big enough? Maybe I should try and make a large set (5x7") decks as well. Lets go see how much a deck of jumbo blank face cards are." And.... I couldn't find any. So reality kicks in and says "Hey kid. Let's see if you can make this play with a poker sized deck FIRST, before crawling over hells half acre looking for something that maybe nobody actually makes."

So, I'll be doing that first. But as a future time saving measure, does anyone know of someone who makes a jumbo blank face deck?

The indices on the jumbo index are the same size as on jumbos if using Bicycle cards. I've seen Blackstone Jr. perform Brainwave with a regular poker deck for a hall that seats 2500, although there were about a thousand in this audience. If the lighting is right, people can follow it with the right patter.

Here are some online shops that offer blank jumbo cards:

https://tesmarzauberartikel.de/uebersich......eckseite

https://secret-magic-store.de/products/b......ace-blue

https://www.solomagia.de/bicycle-jumbo-blank-face-red-es

https://www.makeplayingcards.com/design/......rds.html

https://www.vanishingincmagic.com/stage-......nk-face/

https://www.tannens.com/products/jumbo-b......ck-trick

Azzaro: Thank you very much for the resources. I specifically was looking for a deck of blank faced jumbo cards, the links appear to only sell single cards. I will however poke around the sites and see if any have the rest of the deck for sale.

You are right.
These are the only options that I know of.
Either buy 52 single cards, which would be incredibly expensive. I mean you could try to contact their customer service and ask whether you get a discount for that amount of cards.
Or you design your own at https://www.makeplayingcards.com/design/......rds.html
They do offer a full deck of blank cards. As they are double blanks, you would have to design the back design.

To be perfectly honest, I need to run and refine the trick using a regular deck FIRST, before I invest the money in buying a jumbo blank deck to make the gimmicked deck.