I can't imagine the effort involved to recover a (relatively) small bit of silver would be worth it. Plus, Silver isn't of much use by itself, you need good quality silver nitrate. Concentrated nitric acid to make this would be almost impossible to get these days, very, very dangerous to use and would require fume cabinet / safety clothing etc. Even if you had such things - dissolving a silver spoon in it might be a much easier option. Much easier still would be to buy some silver nitrate... but you are still a long, long way from a working emulsion.
No... can't see that would be viable at all.
jnanian's ideas seem much more practicle...