Cool new stuff to have in my room?

My family and I are moving into a new house soon and i've literally got a whole side of the house to myself for my room upstairs, its quite big as it's a bungalow atm on it's own but we're turning it into a house so you can imagine ita quite huge for a room lol I was just wondering does anyone know of any cool stuff to put in it? I'm really into gadgets and stuff thats great to look at, any help?