How old am I? - Part 2

I found this mug in a Salvation Army store in Ft. Lauderdale last week for 50 cents. (It was half off!) I've never seen a Mai Kai rum barrel that looked like this. There are no markings on the bottom. Does anyone know how old it is?

Its possibly a newer homemade work. I say this because of the lack of detail. Hope this helps.