the old geezer in my local bike shop built a bmx tandem and has had it knocking about for years,
no one would fork out the £300 for such a novelty item.
he is in the process of retiring and has sold his shop, if anyone fancies buying it it would let him end it on a perky note (old grumpy fooker)
i think he built it in the 90's, but its old school looking and completley custom made.