If its for him start with a prostate massager. Something non intimidating like an aneros. If you have a dildo or vibrator., you could put a condom on that and have him try some play. Alternatively, have him glove up and just play in his ass. If he isn't comfortable with that then toys will seem weird too.
if its for you...as in he in you...definitely check into a good lube and have a game plan to take it slow together.
Hubby wants to try it. Any suggestions on products to get?
Try a finger-sized plug. Check out my Mood Naughty large review for some good tips and recommendations for finger-sized toys. This way, nobody's intimidated into thinking anal isn't for them. You can both become comfortable with the idea of anal penetration before moving on to something like thrusting.