Start with the 2.5" ribbon, measure a 10 tail, twist the ribbon and add it to the bow maker. Then make a 6" loop on each side twisting the ribbon as you add it to the bow maker. Leave a shorter tail at the top.
Next use one of the 1.5" ribbons and repeat the same process making the loops slightly smaller this time.
For the next layer cut a strip of the other 1.5" ribbon and lay it in the bow maker. Then make a two tail, two loop layer just like you did before.
Take two pipe cleaners and twist the ends together to make one long pipe cleaner. Remove your bow from the bow maker and use the long pipe cleaner to secure the center of the bow twisting it off at the back.