Loops are common features of the "krazy" variety of these devices.  
Starting in the '70s, Parker Brothers sold "Constructo" kits where kids could build their own varieties of these things.  Mint julep enthusiast Marvin Stone hit upon coating these things with paraffin to prevent them from becoming unusable after a few minutes.  A more flexible device of this kind, first marketed to bed-ridden hospital patients, evolved from a prototype of dental floss wrapped around a screw by Joseph B. Friedman, who had witnessed his niece using one in an (*) ice cream parlor.  Archeologists have found golden devices of this kind used by the Sumerians.  The aforementioned Marvin Stone invented one type of these devices by wrapping paper around a pencil.  A 2005 study published in General Dentistry found that these things can help reduce tooth decay.  Loops are common features of the "krazy" variety of these devices.  For 10 points, name these devices useful in drinking milkshakes.
Starting in the '70s, Parker Brothers sold "Constructo" kits where kids could build their own varieties of these things.  
drinking straw 