Kitchen Sink Plug

I had an odor in my kitchen coming from the sink so I made this plug that works with a paper towel or cloth. basically use cloth to wrap it around (for its suqishyness) and use the top part to squish it between the bottom part.

Dimensions are: 
Top Big Circle Diameter = 80 mm
Bottom Circle Diameter = 50 mm

Height of the plug =  20mm