You know, they freeze very well if you don't have any use for them at the moment. They'll keep for up to 6 months or more. Put them in a sealble freezer bag (not a storage one), close the opening around a common drinking straw... suck the excess air out, seal the bag and freeze... works every time!
For the truly inventinve, mix the yolks together and then, for use in sweet recipes, cakes, etc., mix in one teaspoon honey or sugar with your six eggs.... for savory recipes, mix one teaspoon salt with the eggs. Then, fill six ice cube tray sections with the mixture. This will equal pretty darn close to one yolk per cube. The purpose of the sugar, honey or salt is to help stabilize the yolks for freezing. Place the prepared tray in the aforesaid freezer bag, evacuate the air, et voila!... Best of yolks!