Forget polish get some Salmon Favorelles! Just thinking about all the kind of crosses you could pull off with those fluffy bird is giving me goosebumps. Makes me sad that my area has limits on flock sizes or I might be tempted to get some for crossing.
Maybe you could set up a little temporary corral and put the desired roosters and hens in it for a day (after separating the hens from the roosters for about a week to make sure their eggs are already ferilized by another rooster). Or find someone to set up a chicken playdate with.