You can try to connect anything with a Q post, but what I found that worked, and Q agreed, would be when there would be connections in context between the 2 things you are trying to connect.

Today I see people talking about Trump signing a plane with the number 51 on it. I don't see the connection to post 51, no mention of a plane, no mention of a pen.

This is how my brain works, and what got me Q'd over 30 times.