The base I found is a 6" square & on top has a round depression for a candle. It was with the candles & incense. It's clear so ---I put my purchased tool on my cutting mat, lining it up with the lines on the mat. Then I put my larger square over it & used a washable marker to mark the lines like the original.
Then I took just the new square & using a straight edge & a Sharpie I make the darker lines. Looks like the original just larger. But I haven't tried it yet but after using the small one it should work just on a larger scale