you can get them from HAM members
Yes, they are members' items.
pick pocket ham people.
Yes, the best place to buy them is off players - or at the Grand Exchange. Otherwise the most easiest, but longest way is to pick-pocket h.a.m members to get the clothe parts.
In varrock they let you change your clothes at the hair cuttery.
nothing
you will lose everything it happened to me but its true
Temple Trekking random event
They are Pink Skirts.
sometimes depends me i say yes.
No, clothes that can be changed for 1000 coins in varrock clothes shop CANNOT boost your stats.
I have to assume you're talking about To Kill a Mockingbird. In the end Scout was in a play where she was a ham. She lost her clothes in the school so she couldn't change. In turn she had to walk home in her Ham costume.