i have a ladybug that attaches to my sewing machine its about the size a dime but its 'mouth' has a razor- same principle as the gizmo but mine was less than $5.... and I love it- the only BUG ill ever love.. lol..
the 'idea' is great.. I have a machine cutter built in my sewing machine but i can apply this anywhere. It definitely IS a timesaver..