Some tips would be to read about what you are getting yourself into. You guys need to discuss everything that is going to happen and lay out some boundaries. After discussing, if you still decide it's for you, start off basic - spankings, restraints, and commands. Be sure that you completely trust your partner before participating in serious D/s activities.

Thanks I will try to find some info on it.

You should definitely have a good grip on what type of play your husband is into. Sadomasochistic play can be very, very different from a scene in which he just wants you to order him around in a sexy kind of way. Be sure to keep communication open. If you can, talk to experts of certain play in your local BDSM community (there's a lot more people out there than you might think!)

You don't necessarily need any toys. You can still be very dominant without ever picking up a flogger or crop. This is where the mental/psychological side of things come in. If he wants to be submissive to you then the ball is in your court. Do with him as YOU please. Make him edge and edge and edge until he can't bare it anymore. It's your word that he would need to be able to cum. Let your words and your mind be your toys.

However, if you'd rather beat him up a bit I'd recommend a 'heavy' flogger. These are often times more thud based that sting. It's a good way to start and get the feel for using a flogger. Crops also work really well.

I hope the two of you have fun.