The following patch will add the Pro Set logo from NHLPA'93 to the Scoreboard and 3 Stars screen to any wboy 30 team ROM: nhl94_sponsor_logo_patch.zip
The patch mainly moves around some graphic tile locations to make an editable 6x4 logo for the scoreboard and the 3 stars. The logos are two separate logos, so you can have 2 separate logos if you like, but they share the same palette.
The scoreboard logo can be found in TM offset BC906, palette 366884, 2nd palette. 6x4 grid.