switch

I was wondering what the best options are for switching 3 envelopes for different envelopes? Thanks everyone!

I'm looking for a switch device that can be handled by the spectator and possibly inspected. I don't have a lot of money, and I'm from the UK so shipping can become quite expensive. Is there anything out there that is relatively cheap or can be made from home? I'm thinking maybe like an...

I love Chris Kenner's 4for4 switch, I'm just getting it down (not ready for performing yet), but what I don't understand is how in the demo video the second switch is set up so quickly and invisibly. Any hints and tips please?