Please don't do anything that will poison your bun. It is not enought to try to discourage your bun from chewing the carpet, you need to give her something that will be more appealing to chew. Try putting boxes of hay in places where she likes to chew. Timothy is the best and alfalfa the worst but if price is an issue, check with the Farm and Garden stores near you. I live in the Mpls area and hay is less than $5 a bale. Store where mice won't get into it or you can transfer flees to your buns. Tree branches are better for chewing than toys. Unsprayed Apple and Willow are best but other branches work as well. My buns also like Lilac branches, 1 inch diameter or less. I cut branches around 1ft lenghth, wash like fruit and I bag them and put them in my freezer to keep them fresh. They chew off the bark and play with the sticks. Some trees are not safe for chewing so check it out if you use something different. I hope this helps.