title_body: Where can I find a stand-alone coffee wand for home use?
upvoted_answer: If you want to save money, look to the technology of 60 years ago and seek out a stovetop steamer. Possibly easier to find at a thrift store than online, at least at a bargain.
  
  Then again, you may well find a thrift-store "espresso" machine that you could dedicate to only using the steam wand on, even if you'd never dream of making coffee with it. May also depend on the thrift store, or the week (given that stock varies with what they get.)