Baseball Base Plug

I have searched and searched and never found a good plug for baseball bases, so I designed my own. We have been using a rubber, mushroom head plug for our bases, but the drag we use does not take kindly to those plugs. I tried to design a plug for the bases that could be immune to a drag, but also be visible for when the bases needed to be installed. So I came up with this plug that uses standard weed trimmer string! I wanted to design a plug that required no tools to assemble. From what I have gathered, the only tool you would need is a knife to cut the string if you needed to replace the string later down the road.

There are three different designs here. All of these designs are intended to use standard weed trimmer sting for the "visual" indicator and that is to be feed through the small holes (0.125" diameter). I used 0.110" string for my testing that I purchased from my local hardware store. The two larger holes are intended to be used as a backup pull string and have a diamete