The Frozen Snow Glow Elsa doll is this years 'must have' Christmas toy. Demand is reaching fever pitch with reports of mums fighting to get their hands on them in Swords. Parents queued up all night outside toy shops across the country only for it to be sold out. I spoke to consumer expert Sinead Ryan, the Christmas Toy Show in the RDS and kids and asked why such a strong demand, why do parents give into pester power and surely we all need to get a grip?