Hey so far I have found: parent sanctuary which do a few things through the week they have a Web page so give them a Google. This is a contribute as you can. I have also found the chestnut centre in Deighton has a stay and play on Thursday morning. These are free And little Tom's in Bradley this is free they do a session on Monday and Thursday I'm also aware of a stay and play on Tuesday and Thursday at Brian Jackson House this is free. Another pay one I've heard of but not been to is the branch at jubilee centre on a Tuesday and Thursday. Hope this helps just sharing what I've found so far.
I know of Tiddlers Elim church 10am - 11.30 and Dram centre Monday morning 10am - 11.30