I thought they went on the outside BITD but the official bumph has them shown as above to stop the tip of the shoe from getting stuck behind the front part of the cage
On those particular Campagnolo Toeclips the little pointy bits (have they got a real name?) are actually part of the toeclip itself, rather than the separate parts you can get, so it is impossible to mount them any other way.
You can find out how I made the Stopwatch holder here....