Did not hold up glasses! Multiple attempts made! Did not work!
I bought Nerdwax specifically because the ads responded to my doubts: I didn't think it would be strong rnough and, low and behold, it wasn't.  I followed the directions - I globbed it on there.  My glasses did not stay up - they slid down like they always did.  I tried Nerdwax several times, over several days and always got the same unsatisfactory results.  Now it's in my kitchen draw to use as candle putty to hold up my tapered candles.  Hope it'll work for that!
Rating: 1 stars