Need Help Finding Single Speed Chain Ring

I'm Looking for a Single speed chain ring specifically compatible with 1/8'' chain. Has to be 104mm bcd and 36-42 tooth. Everytime I look online for it I get chain rings compatible with multi speed chain. As evidenced by this video: [youtube]SeO9bvQ-Ut0[/youtube] A real single speed chain ring will not fit multi-speed chain (3/32).

Thanks.

Maybe try some bmx specialists?