that might cause their teeth to become misaligned, which would then require weekly or biweekly vet visits
Even a rat letting you use nail clippers might not be too neato either, so since they can't have antlers, or the date pits method I'd read about, and I'd heard nut shells are even harder, so could even chip a tooth ....
fruit juice on the wood (I read that it can help), and she was only interested until she realized that it's not food
Have you tried making sure their treats are the hardest you can think of, like carrots (since the juicy wood started to work)?
gave her things like yogurt containers to destroy
I waited till she grew up to use yogurt lids as dishes, since as a baby they had to be clean, for her to not act like she might swallow bits.
she never ever stops moving outside of the cage, and she is always searching for a way to escape.
Soon as I'd had my additional rat for a month, she went from: in my shirts up and down each sleeve (& circling at my waist, shoulder crow's nest, styles my hair for me, dive back in at the neckline) to: deciding my arm is a weird-shaped rat to share this "hammock" with calmly for hours straight as I walk around the house doing things. She will still have me chauffeur her from cage to furniture to floor to cage ... endlessly.
she just wants to explore. She definitely seems bored, but she seems that way no matter where she is or how long she's out of her cage.
If it's not some smell/noise/etc ....
Their deep soil packed tight is for quenching urges to dig their way out.
Also there's a quarter of a mattress pad (on top of the bottom cover) for them to be sandwiched under. The objects weighing it down are just far from each other enough they can squeeze through, light enough to give if the fit is tight, heavy enough to then keep it snug to replicate burrowed tunnels. Looser paths at the edges, a few larger & they choose a play area which she pokes up with her nose till it's as roomy as they need.
Hammocks and ramp covers had to be replaced quite regularly with her around.
One of mine does make her fabric things ratty, but for nesting/sniffing/view/exit route purposes.
I have some pieces of cardboard hanging from the top of the cage that she's trying to get to, and it seems to be keeping her busy
You could make sure her climbing stuff is set up to be just barely reachable, in case the problem is a limited number of challenges to alternate between.
a flying saucer type wheel if she were interested
Mine don't understand about running on it either - guess they might if they'd had it as babies.
Demonstrating with "yellow pages" fingers was like a bad weight-loss program that made them think food instead of exercise. They sniffed it & looked at me like I was a magician ... "Where'd the snack go?"
So now I use it as their salad bowl ... in fact that's what it looks like.
I call their accordion tunnel the "blue hole" since it's hanging where it ends at the entrance of their space pod and begins right above the top of their flying saucer (so have an interesting time getting in and out). It's the sci-fi wing.