Hi guys, I've picked up some confusion on this front recently so I'd like to just take a moment to restate the WBBL policy towards bringing your own dice to use in games (specifically D6s and unusual block dice).
Primarily, this is a casual league, and people obviously like pretty things, so you are of course welcome to bring your own dice down to the club and, if you like, use them in your match.
That said - I expect that anyone wishing to do so draws their opponent's attention to the fact they they've brought their own dice, and politely and actively seeks their explicit agreement before using them. More, if your opponent declines and would prefer you both share the club dice, then I expect that to pass without challenge or protest.
Remember that this is a casual club and just a it of fun on a tuesday, but ultimately we're still playing a dice-driven board game and some people just don't feel comfortable with bringing private dice stocks to games - and given most of you wouldn't insist on your own dice at your Nana's for Monopoly, please don't try and do so in our casual beer and pretzels league.
TL;DR - use your own dice, but do the decent thing and ask permission from your opponent first. It shouldn't be controversial