Any cock cage is functional and will accomplish all you need.  A pink one, though, helps drive home your dominance, and his submission.  Um...  He won't be messing around with the ladies at work.  ;)

Long nails are great tools. - reaching into cock cage openings - tickling and teasing his balls - digging into his back or buttocks - they just look wicked!    

I love going to the Pool.  Leave his cock caged and wear your best bikini.  Male trunks are so thin...  It's so easy to accidentally brush against his caged cock...  And oh how much I find I need to rub my tits together and moan a bit.  Not sure why that bothers him so much.  ;)

To teach your male control, edging is a great way to tease him, and help ensure you both know just how far he can go without losing his load. If he loses his load, it's all done... Well, except for his punishment.  If he only edges, the fun can continue

Use a vibrator while sitting on his locked cock.  Benefits: - orgasm - he knows his cock is so close to your pussy - he will feel vibrations - he gets an open (frustrating) view of your body - he remains locked and denied    

You don't need ANY special outfit to be a perfect dominant.  Anything that will suffice as a paddle, crop, or whip, and then position him below you.  Instant submissive.

Make sure to collar him and leave him humbled in the most public places in the house.  So he is always reminded of humility when company is visiting.  Leave blinds open enough to make him nervous if neighbors can see.  Adds to the thrill.

Pegging in the mirror for him will help him see how submissive he is, and how much you enjoy it

If he's out with the guys, call him home by letting him know what he's getting when he gets home.  Punishment awaits if he doesn't rush home!

If he's not wincing, your not doing it right.  It should be a perfect balance of pleasure and pain for maximum effect