Lyotard, the big French pedal manufacturer made quite a few pedals suited to Schwinn 1/2" cranks and toeclips into the 1980s. They are usually pretty basic "rat trap" style steel pedals, but generally have serviceable bearings under a removable dust cover.

However, I would look on eBay for "MKS" (Mikashima) BMX pedals. They look like basic Road quill pedals and came in a variety of anodized colors and indeed have 1/2" axles. Very nice quality.

Some of the New Old Stock pedals listed at $50 in the US are really excessively priced, but these are definitely out there - check out the International Seller listings:

http://shop.ebay.com/items/?_nkw=MKS...dals&_osacat=0


Here is one set in England:

A good photo from a UK seller who seems to have a good selection in stock for 1/2":

http://cgi.ebay.com/NOS-BMX-MKS-BM-7...3286.m63.l1177



Or, better still, right here in the US...

Here is a copy made by "Victor" from the 1980s...

Buy it now price = $18.95 plus $7.75 shipping... hard to beat that!

http://cgi.ebay.com/Victor-MX-1000-S...d=p3286.c0.m14