I am pretty sure they are around--saw many LED replacements for sale at the flea market last Sunday,that replace 1157's and many others,and I'm pretty sure the guy had some that were either #67 or #97 replacements..(I looked on google and saw some for sale for about $6..)
I was tempted to try a few of the 1157's out for $2 each,but I've read they don't always work right with a mechanical flasher..