Don't do Happyland unless it is for small children, and Blissville is a bit, like, totally groovy man. (You need to do that last line in a Cheech and Chong voice.)

I rather like just Bliss, and then you could have Bliss Wear, Bliss Protection (e.g. sunscreen or hats) Bliss Tech (goggles etc) Bliss Events etc,

BlissTech gives you the happy relaxed feel with a modern edge to it and the 2 syllables that you liked.