While helping a friend-of-a-cousin last summer, the friend's front loader bucket had its hooks welded to the top of the rear of the bucket - 3 of them (1 at each side and 1 in the center - facing towards the operator.
In addition to using the chains by themselves, the friend had a self-designed boom that he'd made of 3" pipe, about 3' of 3"x1/4" C-channel [welded into a "T" at one end] that went over the scraper edge of the bucket and was held in place by a length of chain going from a hook on top of the pipe to the two corner hooks on the bucket. For additional support, another length of chain went from a pair of hooks on the pipe to the center hook on the bucket. Additional hooks on the bottom of the pipe were used to keep the lifting chain from slipping.
While this may be a common application, I, personally, hadn't seen one quite like it.
The friend used the boom to lift wall sections of metal buildings so that they could be turned over and welded on what, till then, had been the underside.
These walls, BTW, were framed in 4"x4"x1/4" box tube with 2"x4"x1/4" "studs".