I'm not sure what you're looking for, Betty, but I've seen umbrellas turned into beautiful decor for your home. Here's one idea:
what are you wanting to make it out of?
Oh! Here are a bunch more like Ann just posted https://www.pinterest.ca/donnapassmore/umbrellas-repurposed/?autologin=true
Just when I think I have imagination I am reminded that there is so much more out there!
You are in for a treat, take a look here:
Are you looking for a flat umbrealla base? Not clear as to what exactly you want.