I HAVE MADE SEVERAL....SEVERAL MORE IN THE WORKS... THE FIRST ONES I MADE USING PDF AND COVERING THAT IN TIN AND THEN CAMO TAPE. THEY SEEM TO WORK GOOD. SOME OF THE ONES IN THE MAKING ARE USED STEEL BOX'S. I GOT SEVERAL FOR FREE. THEY ARE AN OLD DESIGN THAT ISN'T USED ANYMORE BY THE POWER COMPANY. I SEEN SEVERAL MADE IN STANLESS STEEL. BUT WHEN YOU WORK WITH HEAVY METAL IT'S HARD TO CUT AT TIMES.I'LL TRY AND POST PICTURES LATER.