I am selling any of my redstone contraptions of survival. On creative I have a large amount of redstone contraptions. You can buy them and if you provide the materials it will be pretty cheap. It will cost more if I provide the materials. You can PM me or ask me when I am on and I can name a price. Almost all of them are pretty cheap. I can even combine some such as a 9-lever lock combonation and a piston door. I include special entrances, item elevators(including upward elevators), many piston doors, and more. If you want a certain thing tell me and I will try to make it.