i snapped mine off a couple of years ago
honda 130 on my camel boat, it snapped clean off along the bottom of the casing leaving a 0.25'' stub of skeg which was slightly bent
i looked into all the options starting with a new leg and getting cheaper,
in the end i bought a weld-on replacement mercury skeg from the local chandler for £20 and took that to my local honda outboard dealer who welded it on for another £20
they're great and are acually a narrowboat hire company and chandlers on the side of a canal - i reckon they can weld water
anyway it's now as good as new, you can't see the repair unless you're looking for it and the mercury part hasn't affected the phenominal (and well documented) performance of my honda 130