What ways do you have (or remember from childhood) of presenting gifts like bikes, or other things which would use a lot of wrapping paper? Putting a sheet over them, bringing them out of another room with a flourish, taking the recipient to where it is all set up?
My parents simply used big plastic bags, and one big present was wrapped in newspaper and string. I remember a girl at school telling us how she received a bike: she was blindfolded while it was brought in, and told to have a feel, before it was revealed.