How to print blackletter?

Okay, this might be a bit of a strange question but it felt more appropriate to post it here than r/handwriting.

Essentially, I'm looking for a way to legibly write blackletter (preferably Fraktur) in ordinary print text (so no Sütterlin/Kurrent) with a regular ballpoint pen or, well, a chalk. (It's mostly for maths.) I've searched far and wide but couldn't find anything on this. So far what I've been doing is replicating characters from a certain proprietary font (Hoefler Inkwell Blackletter Thin, which obviously isn't Fraktur) by eye but the results are suboptimal to say the least.

I realise blackletter wasn't intended to be written this way but I'll take anything that works. Any ideas?