The shackle idea is the best there is... It kinda takes after the hummers, but we've put them on both me and my buddies two jeeps, and its given alot more peace of mind while strapping people out. Other good ideas are tube bumpers, they're less likely to mar up a tow rope / strap. Strength, and an ability to add a winch later. Even if it is a trailer queen.
Florida Mud CJ-5
'77 RB304, t-150 D20 4" 35" swampers