Cheap vases for centerpieces

Dollar tree

It depends on the height you want. Also remember to calculate shipping.

http://store.wholesaleglassvasesint.com/index.php/trumpet-glass-vases.html

https://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=trumpet+vases

You can look at Michaels they always have 40-60% off coupons now you can buy online and pick up in store, it's only one coupon per transaction but maybe take someone with you or buy online then one in store harder but depending what you're looking for might work

Ikea has a variety of cheap glass vases too.

I just saw some at Hobby Lobby.
I believe they had a medium and tall. With that half off sale they were $10 & $15 each.

Amazon has 6 pack for 60 dollars. Also good suggestion with Michaels

Amazon or a craft store

Try the dollar store or Joann fabrics

Dollar tree, Michaels or hobby lobby with a coupon!