Here are some tiles I saw on Pinterest. I made two of them for wedding presents for coworkers and two for Christmas presents. I love how they turned out. I give the credit to Paper Pastime. Check out her blog. She has some awesome ideas and great tutorials, too.
I used the regal font for the monogram letter. I cut it out of black vinyl and put it on a 12 x 12 floor tile found at Lowes. Or is you are lucky enough like me and have great friends who have left over tiles that they "donated" to my crafting business. They are easy to do. I coated them with modge podge and a clear shellac.