Christmas for kids

I am hoping to volunteer over the christmas period including christmas day for sick children and want to bring some festivity to the hospitals and hospices aswell as their parents and carers. I want to raise donations of either gifts or funds to be able to buy gifts and festivities for them. I am doing both a strongman competition dressed as a christmas pudding aswell as a sponsored run in the same costume.
Christmas is a time for joy and I would appreciate any donation which can help my cause.