SWMBO's can be a tricky thing
What I have found work for me, is to involve her in my new hobby as much as possible.
Showing and telling her all about the gear I'm buying way to much of..

The first time she saw my strops hanging in the bathroom she stormed out of there, asking me what kind of sick new sex toy I had bought now
The next fortnight she told all guests at our house to use the other toilet in the house..

She knows better now, and even thinks it's kinda cool.