[header] How to reuse broken stemware as garden candle holders [title] Find suitable broken glasses. [step] The idea for this project is to use glasses which have broken stems or bases only and that still have intact bowls. Do not use glasses with jagged cut tops or broken shards. 
While you don't need the glass to be in perfect condition, it does need to be free of cracks and other vulnerable areas that could make it prone to further damage. Also ensure that you choose the right stemware.