I've come to realise that we need three collars. No collar is always perfect. One big and obvious one used at home or in a place we feel our lifestyle is welcome. One she can sleep in, (I've made sure the big one is too uncomforable for that). And one small discreet one that only is obvious to people who know what to look for. My slave is a pretty high-life bussiness woman so she needs a collar that goes with bussiness clothes and doesn't steal attention away from her message. I've chosen to respect her needs in this respect.
edit: that reminds me. Anybody know where I can buy a rhinestone dog collar? Classy classy sassy sassy and subby subby. something a bit like this.