Held in Poland each June is one of world 's largest church trade shows . From electronic keyboards to heated pews , ecclesiastic hardware are available . `` At that temperature , even the communion wine freezes , '' says a company spokesman . Industry supplying church hardware is estimated to be worth around $ 4 billion . Last year 's exhibit was a full reconstruction of Pope John Paul II 's ' popemobile '
Held in Poland each June is one of world 's largest church trade shows . From electronic keyboards to heated pews , ecclesiastic hardware are available . Industry supplying church hardware is estimated to be worth around $ 4 billion . Last year 's exhibit was a full reconstruction of Pope John Paul II 's ' popemobile '