"microphone boxes" are more or less telescope boxes and you can find them lots of places. It's pretty easy to get someone to upholster it locally if you can't find one pre-upholstered
Thanks for the replies. Hobby Lobby doesn't ship to Canada.
However, In my search for telescope boxes, I found the perfect box on amazon. Not sure if we're allowed links so just need search
Prettyia Natural Wood Box
$15 CANADIAN free delivery.