Brand new in the box Olympus Shoe 2s available for $14.95 on ebay! These are easy to break and hard to find but there's still 4 left. Also, seller only charges $1.00 S&H!
Larry, but if you have an OM2 or two (which I do), it's a good deal. I think the OM-2 WILL take the shoe 2, you just don't get compatibility with the T series flashes with shoe 2. OM-2(n) flash shoe info here: http://olympus.dementia.org/eSIF/om-sif/bodygroup/om2.htm
Sorry, I should have been a bit more clear. The seller listed the Shoe 2 as made for the OM-2 and OM-2n. The Shoe 2 however does not fit on the OM-2n and will only fit the OM-2 (http://olympus.dementia.org/eSIF/om-sif/flashphotogroup/shoes.htm). For you, it is perfect.
Since the shoes are getting hard to find, you can cut the extra pin (ttl connection) off Shoe 2 to make it fit the OM-1. OM-1N shoe (shoe 4) screws on in the opposite direction.