There are peel & stick tiles, I haven't tried them but there are lots to choose from. I think some suggestions would depend on what you have now, and how much you want to spend and do.
I have two 6' patio doors, and I want to add blackout curtains to keep the sun/cold out. What is the best way to hang them, and what can I use to push the curtains ba...
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Sticky backed tiles or Contact or Cork tiles etc...
Here are a few ideas that might help - https://www.diynetwork.com/how-to/rooms-and-spaces/kitchen/7-budget-backsplash-projects-pictures
There are peel & stick tiles, I haven't tried them but there are lots to choose from. I think some suggestions would depend on what you have now, and how much you want to spend and do.
Here's an "Easy Backsplash"...