Definitely remove all plastic! Their little systems can not digest plastic and it can cause havoc with their tummies and intestines. It can kill.
Also, remove any and all aluminum parts before putting a toy or a holder in their cage. Aluminum is a soft metal and the chinchillas will chew it, with the same results as plastic ... trouble, with a capitol "T". We decided to purchase very expensive aluminum trays, because they would not rust, only to find out they would chew the edges, leaving what looked like a serrated knife edge. [Photo below.] The damage in the picture was done in one night.
If you can't find a wooden hut fairly quickly ... oatmeal or tissue boxes work great ... they are chewable and disposable! I usually peel off the outer layer if it has allot of color on it ... not fond of the idea of them eating ink.
Toilet tissue rolls,
http://www.luvnchins.com/VideoSimpleChinchillaToys.html (especially the large ones), empty paper towel rolls, a paper bag anything that they can chew on safely, climb on or in safely, and/or drag around is usually enjoyed by the chinchillas.
Except for the long term sturdy ones, like the flying sauser wheel, expensive toys are generally for our bragging benefit only. (Except for the long term sturdy ones, like the flying sauser wheel.)
Check out the pages in this section:
http://luvnchins.com/ChinchillaSupplies.html Take a look at the expensive huts that lasted less than a month.
Jo Ann