What does a morning star tattoo symbolize?

I would imagine as in most other forms of body art that would depend on who was having the tattoo done. In my case it is a memorial representation of my gradfather who raised and crossedbred morning glories when I was little and we spent most of our time together in his garden, so I thought it would be a good way to pay tribute to him Morning glory seeds are eaten for their hallucinogenic effects, so I'm guessing this person liked morning glory seeds.