I say go for it! I have done occlusion training using rubber tubing in the past. I'm doubting few will be motivated enough to do it, along with making sure do do it right (done incorrectly, it can be dangerous), high AC may not have the same effects on skin temps as that Vasper, etc, but there's no reason not to DYI it if one is so motivated to do so and has the room, etc. One can do all three of those as DYI if they are motivated enough to do it, and that can be said for all manner of things. Others however will opt to use X machine that takes the thinking and such out of it for them.
