We're putting the finishing touches on our first coop ever (for our first flock!). We like the idea of 'rollout' nests and my husband thought of using heavy duty plastic paint roller trays (new ones) in the bottom of the nest boxes so that the eggs would roll to one end for retrieval. Anyone tried this? We were tossing ideas around such as plastic kitty litter trays, etc. also. Thanks for any tips! The hens shouldn't be laying for about 12 weeks still, but we want to get the boxes laid out before they move in to the coop.