Ordinarily, it would be OK for your child to take toys of other comforters to child contact centres. It can be reassuring for them to have something with them that is familiar or that provides a sense of reassurance.
Once your referral has been accepted by the centre, each party will be invited individually to a pre-visit, here you will have the opportunity to discuss any queries, requests or concerns with the centre worker who will be able to advise accordingly.