So you just realized tomorrow morning you are meeting a friend and don't have any wrapping paper for her Christmas gift. If you are me (one year ago when baby was still in the womb) you don't worry much because you can make your own.
Take one sheet of ordinary white wrapping paper. I keep a stash of such materials that are too good to go to waste.
Start covering your paper with paint. Here I have used a dark palette of browns and black. Try not to think to much while doing it. Just have fun and do not over do it so the individual colors can still show.
Once you are happy with the background, start decorating your paper.
I am using a wooden print block from India (thanks Laura), but you can use so many things (stamps, fruit-as-stamps, gel pens, inks). Your imagination is the limit.