Ah I hate the smell of megazorb! I've never seen snowflake shavings I'll Google, tbh I've just avoided shavings in general, we use fitch and hay and back2nature in litter trays for bunnies and it's always been fine so I've never looked elsewhere haha
It certainly has a distinct aroma! I find it dissipates quickly but all mine are in sheds so its less of an issue for me