just get your self some d ring holders and weld em on. its not to hard. i added a cb antenna mount, light mounts, and a winch plate to my bumpers.
94 yj, 4" procomp lift, 3" body lift, sliders, cshr corners, d44 e locker rear swap, 35" bfg at's, 4.10 gears, crown 7 layer brake lines, jks discos, jks track bar disco, 97cherokee 4.0 swap.
next up twizted soa full widths. 14bolt and dana44
colorado, home of the insane http://www.cardomain.com/ride/3144433
I'm not an engineer or fabricator (although I've got some mad skillz with a grinder ) . . . so take this with a grain of salt, but I'd be a bit concerned about the strength of just welding a shackle tab on there. From the picture, it looks like that bumper is simply a flat piece of 3/16 with some bends and not a square or box tube like many of the off-road bumpers, which I would imagine would be much stronger and where I believe they put the shackle tab thru and weld it on both sides of the box tube. Seems to me like you would want more support or you might risk bending the bumper.
Bite the hand that feeds you . . . you've had more than enough to eat already.
It is very possible to weld in some d-ring tabs but first you need to know a few things. Check the back of your bumper and look at where it mounts. Its an aftermarket bumper so I assume it ties into the frame rails with several bolts on each side. Although, Im not familiar with that bumper in particular so just double check to make sure. Secondly, do not buy a tab that simply welds onto the face of the bumper, this is a weak design that will eventually rip right off if you really end up needing to use it in any kind of real stuck. Look around but I know that there are a few companies around that offer a weld through tab. Getting a weld on the back and front of the bumper is going to give that added insurance and strength that you'll need to be able to pull on it without worrying that its gonna get pulled off. I will try to find what Im talking about for you and post a link later.
Notice the Heavy duty tabs, they are mounted through the bumper; in one face out the other. Notice the cutout on the back side of the bumper, this is where the tabs end up being welded in the back side. Very strong.