Cane - as long as you get any blood off them and wash well you should be good to go. Borax seems to act as a bug deterent, I use a mix of Dawn foaming dish soap and borax in a plastic coffee can. You shake them to agitate, let em sit, shake and sit. Pour them out into a strainer (BUY YOUR OWN!!!!LOL) and rinse them.
The feathers will dye better when they're wet. If I'm not going to be dyeing them right away I put them in a pillow case and throw in the dryer for 5 minutes on medium heat, then just air dry. Pack in zip bags and that's it.
I've used easter egg dye, kool-aid, Hawaiian Punch and RIT dye. Got some of the Veniards Fly Dye this past X-mas and the stuff is excellent!!!!!!! It costs a bit but a little of it goes a long way!!!!!!!!!!!! and the colors are excellent.
Here's the first ones I did -
http://www.crappie.com/crappie/jig-t...d-hand-dyeing/