Spare plumbing parts (clean) (Ballard)

Seeking any clean (never used) plumbing drain parts from your DIY projects. Many kits come with options to cover all circumstances and leave you with orphaned pipes, gaskets, clamps and other parts. I'd like to put those to use. Trying to build a nimble little supply stash for emergency home repair needs for multiple houses. Can be any color, (black, white, gray, brown, etc.)

North and NW Seattle preferred, but will travel for quantity/variety.