8 XXX : bdsm

[Try 2020 aluminum extrusion](http://us.misumi-ec.com/vona2/detail/110302368740/). You can buy connector plates and sliding nuts to build almost any shape, and reconfigure as you please, and it would be pretty cool to be able to put hangers and anchor points whereever you want and move them around. You can get up to 4m long, and you can also get 2040, 2080, etc for heavier setups. You pretty much just need a hacksaw/miter box or mitersaw, drill and wrench/screwdriver to build whatever you want. Edit: I link Misumi, they're a bit expensive, but you can buy it in a lot of places by searching 2020 extrusion. And the Misumi site can be really confusing to use unless you're used to materials and component sites. Sometimes Misumi has [promos on that will give you like $150 of free materials](http://www.reddit.com/r/3Dprinting/comments/1yhtj3/misumi_150_promo_faqs/) to new customers. They did this for 3D printing people a while back. I'm sure they'd be a bit less interested in a BDSM-based promo...