Originally Posted by Athiril
Hypo is just metabisulphite or sulphite in water (usually the latter, sometimes both).
If you cant get thiosulphate, and want it for something other than a fixer (so cheap thiosulphate fixer is no go) then you can heat sodium sulphite + sulphur in water to make it.
Sorry. Don't try to fix film or paper with the former!
The latter synthesis is correct, but rather messy. You can get colloidal sulfur.