A gallows is definitely on my list of 3d meshes to make into Sims 2 deco, but there are 2 nooses out there already that I know of, one by Billyjean/leehee at GoS, and one by Wallsims.

Note to self: add 'learn how to make poseboxes' to list of things to do (sigh)

Also, why would you use a stretching rack for aroma therapy? That doesn't sound very authentic to me ...