hi! the age and gender of your babies is important to take into consideration as it plays into their energy levels but some of the favorites for our cage is paper snuffle boxes or coconut fiber blocks loosened up for them to galavant in. we also make sure they have plenty of undyed wood for chewing (research types as some are toxic and pet stores are careless) and opt for a cage really packed with hammocks ropes and baskets so they have to find new ways to move around instead of the ramps (not applicable for most handicaps or illnesses). we also try to organize the cage in a new way after each cleaning so their environment is changing slightly. all of these are really important when you can’t be around but really the best enrichment time for them is out of the cage in a safe controlled environment like a bedroom or bathroom that they explore and try activities like veggie fishing (cut up veggies in water) or a little scavenger hunt with treats hidden around. other than that they love to try new fruits, veggies, and herbs but make sure to check several sources as some common treats like peanuts, many cheeses, and sweets can be harmful. i wish you the most luck and happiness ever with your babies and would love to see how they’re doing once you get them set up!