In the NFL a lot of teams play a game or two each year in "throwback uniforms", I wonder if that's a situation we could explore, picking a couple of games to play in the butcher's apron each year (especially if the option were available to bring it out for big occasions like the big Cup games last season or the Grand Final if we made it). The issue of course would be you would need a new butcher's apron shirt each year to have the current sponsors featured on it, and therefore more expense, but maybe those expenses could be offset by having replicas of those jerseys on sale as well as the "regular" home and away jerseys, most fans surely wouldn't feel obliged to buy a new butcher's shirt every year but you'd have a small turnover of those jerseys at least. Plus we'd have the possible psychological advantage when the players run out for a big game in the throwback butcher's shirt.
The NRL have a heritage round of fixtures and have done for years. Were Rovers to do this, strictly speaking we wouldn't go back to the butcher's apron, we'd go back to chococlate & white hoops, or even further back plain white shirts. They were our kits before we started with blue & white.