Cushion Restuffing foam project (laugh, but treat serious)

[berserkfan]

OK, I know it sounds weird to mention this here, but that's my current project. I need to restuff a bunch of deflated sofa cushions.

Offhand I have been getting very high quotes. And my place isn't near any of the upholsterers, which means two off the way trips for someone like me that doesn't have a car. One trip to send, one trip to collect back. Not keen.

I am just thinking of getting my own foam and stuffing my cushions myself.

Does anyone have any idea about the issues to face?

So far I understand the basic concept that Indentation Force Deflection (ILD) defines a cushion's hardness. I understand that usually the pros buy different foams so that there is a mix between hard/firm support and something that can yield to body weight. I want a very high density foam that you can sit on to talk in the living room, and which isn't soft enough for the kids to jump on and hopefully not so light that they will throw around (which killed the old sofa cushions btw).

I haven't seen much talk online about how to cut the foam, techniques or whether it will generate toxic or allergenic dust. Basically would like to see if anyone has had experience working with foam. Also does anyone glue foam to his surfaces with hot glue? Does it work to childproof certain sensitive areas?

OH, if it helps keyboard knowledge... posting here about sound dampening is fine.

[Redmaus]

Everyone here loves offtopicthority, so its fine.

What do these cushions look like? How many sofa cushions?