5 spline wheel lugs and socket

[Lynn]

Any wheel lug gurus out there. Sherri missed her little MRoadster, so I found another one out in CA. She is enjoying it. However, it has five spline lug bolts, and there is no socket to be found. Guy I bought it from can't find the socket either. Went to a couple tire shops locally thinking they would have an assortment of sockets. No luck.

My guess is the splines are unevenly spaced and there are 10 or so different sockets to deter theft. Anyone offer any guidance?

They look similar to these, but I have no way of knowing if they are the same brand.

Five spline lugs and socket