Dig, roll: Ferrets love to dig, and there are several products that can fulfill this need, such as a bin filled with colorful plastic balls or a box overflowing with nontoxic,
starch packing peanuts.
Not exact matches
Healthy
starches and fiber and protein are now
packed in this chocolatey treat, and something like
peanut - butter - cup - frosting exists in four plant based ingredients.
Other suggestions are ping pong balls (fairly cheap at dollar stores);
packing peanuts (corn
starch based, NOT Styrofoam); and plastic balls like the ones used as ammo in kids» toys or in ball pits.
Note that
packing peanuts used to always be made from Styrofoam but are now increasingly made from
starch, which dissolves in water.