Spread glue over 1 sheet of the felt. Arrange the pipe cleaners crosswise, equally spaced, on the felt with 1 end of the pipe cleaners touching 1 long side of the felt (the pipe cleaners should hang over the other long side by about 1 inch). Spread a line of glue over each pipe cleaner. Place a sheet of felt over the first sheet, pressing down and sandwiching the pipe cleaners between the felt. Let stand until dry.