I am making a tennis racket to place on a sheetcake. I plan on using MMF to make the racket. How you suggest making the strings? My hand is not the steadiest so I don't thunking piping it would work for me. Would you just roll out individual strings from MMF?

How about uncooked spaghetti noodles? You could "paint" them with food coloring.

Dental floss would work.

An extruder would be very useful in this situation

I also thought uncooked noodles. If you have an Asian market near you, there's a type of noodle called SOMEN that is quite white and thinner than spaghetti. Then you wouldn't have to paint it.