Superman fortress crystal chamber?

[autobotjohn]

hey friends so im looking for ideas on how to build a not to expensive crystal command camber for my life size Christopher Reeve Superman statue ive made? was thinking of using clear plastic tubes but don't know where to find them in size i need?

 

[SGluedMyFingers]

I Googled "Clear Plastic Tube" and it listed dozens of plastics companies and more common stores like Amazon and Home Depot.
All offer various sizes, even custom.
I'd recommend Acrylic but that's going to be expensive.