I have made a wibbly wobbly alien, it's really easy and you can do it too.
First draw the alien's head and body. Mine doesn't have a body, it's just a big head.
Then get four long rectangles of paper. Take two of then and consatina them together. Do it again for the other two. These are the legs to Sellotape on the body.
I suppose you could do more legs and some arms as well but my alien wasn't designed like that.
They are so much fun. Enjoy.