My piggie is very skittish right now. I just got him Sunday and his pigloo is too big for his cage, I'm already gonna buy a bigger cage but need a solution to my problem for now, I tired the tissue box but its too small and he chews on it. Which do skittish piggies prefer most cozie saks or cups and where can I buy them, I saw guinea pig stuff.com and cozycavy.com is that it?