Not sure what others do but I always like my SIBs to have their name on the transom. Might help ID it if washed up somewhere (!!) and is a name to put against payment of pontoon/slip fees etc.
I put the name on the inside of the transom as it's usually easier to see.
Just had brilliant service from these guys...
... where you design the sticker online and it calculates the price etc. I ordered one day and received the next. The letters have strong adhesive and are on "front backing sheet" that keeps them aligned for a perfect result.
No sniggering about the name again Willk... we've been round that loop!