The wood pallet swing is much better than these from tires (which have become quite popular in the garden). They are environmentally friendly and safe for the health of our children, because pallets are made of the best natural material – wood. Before you make that tree swing, pallets require some pre-treatment.
Image credit: DIY Enthusiasts
For painting swings choose soft or bright color that can turn unsightly pallets into a work of art like this shiny yellow. Please follow the below link for full tutorial from DIY Enthusiasts: