Stacey Solomon is celebrating her son Rex's birthday at the weekend and in preparation has made bargain party bags.The Loose Women panellist, 33, took to Instagram on Friday to share with her 5.6M followers the Spiderman-themed party bags she has made for Rex which she said cost just £2.50 each. While Rex's birthday isn't until Tuesday the mum of five shared that they were celebrating on Saturday and had hired a trampoline park out for her son and his friends.