Donna, it sounds like a fun project you have planned for summer family and friend times! OK, if you click on "explore projects" then on "build" and type "tiki bar from pallets" in the search box and hit enter you can find quite a variety of ways to build your bar. I have chosen one for you, but there are many more from which you can glean or plan to use. Good luck with your project and have a wonderful summer! https://www.hometalk.com/39247552/diy-pallet-tiki-bar
Here is some inspiration for you!
You would make a U-shaped out of the pallets one whole one for the front take one and cut it in half that’ll be the sides and then you need another one cut in half for the top it actually comes very cute I’ve seen it cause I need to put white lights and paint it
here is another post for you, good images and instructions https://www.thehousehouse.com/diy/diy-pallet-tiki-bar-aka-the-treekee-bar/