This is a cool idea. As for shaping the acrylic, forget the heat gun. If you have electric burners on your stove turn one on high and hold the acrylic over the burner. The slower you do this the better outcome youll get. holding it 4" or so above the burner it will begin to bow on its own. once its fully plaible you could place it on the side of kitchen pot to form the curve you desire. If you look into it you can actually place the acrylic in the oven at a specific temp to make pliable.
Thanks for checking in on this.
I like the idea of doing it over the stove, but I have gas burners and had a similar result to the heat gun.
As far as putting it in the oven, that can be pretty dangerous as the acrylic out gasses as it heats up, and the mixture it releases is potentially explosive so a lot of sites with instructions for forming acrylic warn against using that process.
However, what you're saying about going slowly is totally helpful. I ended up trying it with a blowtorch too and got a little better result when going really slow. Still, it didn't work out as nice as the oxyclean bucket. (we'll see what I have to say about that once I flood and how it looks then)
I think it also came down to the fact I was using the cheapest acrylic at home depot which is pretty thin, so it is more sensitive to heat swings and shriveled faster than bending. I may have had more success using boiling water or steam or a balance between a hot hair dryer and a cool heat gun and more patience. I say a lot of this for people who may end up wanting to try the same thing or form acrylic for other projects.