Mangosteen - fleshy, sweet like a passion fruit. I could eat these all day!
Longon - a new one to me, they come in little bunches like grapes, have a ugly hard exterior and a tangy sweet surprise inside with little seeds.
Rambutan - This one looks SO cool, they remind me of a fruit from Dr. Suess land. You peel off the bizarre outer later and inside its a little like a fruit snack. (There is a seed inside that is sometimes hard to disconnect from the fruit)
Rose Apple - or Shampu in Thai - Kinda like if an apple and pear had sexy time, very refreshing!