More to explore:
Dip-Dye Floor Mat: This is from West Elm, but I feel a DIY project in the future with a cheap rug from Ikea.
Dip-Dye Floor Mat #WestElm $9.99
idea for tie dye place mats, floor mats, any kind of mat!
Dip dye floor mat from West Elm
dip dyed floor map from West Elm
I just bought this today!! (it was on sale for $4.95)