and here i thought you were going to ask relationship questions... oh well, i'll give you some info on these ones

yes you can refreeze prey items. just remember... the more you refreeze the greater chance of the innards exploding while being thawed and/or eaten.

and second... personally i keep aspen bedding on the bottom of my enclosures simply because i like to give them something other than a flat surface to move around. i also have some plastic plants from the petstore and a piece of driftwood in my enclosures... but as for toys... they don't need them. won't care about them. any and all things like driftwood or plastic plants you add... are simply more things you need to clean on cleaning day... you ball may look bored... but it isn't.