title_body: Where can I find custom dictionaries for my Kobo Glo?
upvoted_answer: Apologies for replying as an answer, I have no sufficient reputation to comment.
  
  I am the creator of Penelope. I thought about this for a bit, but the main problem is that I am continuously asked to "convert" materials that are clearly pirated from copyrighted, commercial dictionaries --- which I always refuse --- and hosting them onto a public web site would yield to legal issues.
  
  Probably the best option would be creating a thread in MobileRead, but clearly only for public domain or CC-licensed materials.
  
  EDIT: I created such thread: http://www.mobileread.com/forums/showthread.php?p=2755188
  
  EDIT 2: I posted directions on how to install custom dictionaries on Kobo devices in the Penelope GitHub README: https://github.com/pettarin/penelope