I'm going on cruise soon and I wanted to know why they don't sink even though there is a lot of wait on it?
The important factor is density It doesn't matter how much the ship weighs, as long as the weight is distributed so that the ship is less dense than the water Here's a simple experiment you can doFill a bowl with a few inches of waterTake a small piece of aluminum foil and shape it roughly like a shipPut it in the water and the aluminum will floatThen, take the same piece of aluminum foil and crunch it as much as you canTake a pair of pliers and keep crunching it until all the air is out of itTry to crunch it until it's about the size of a peaDrop it in the bowl, and it will fall straight to the bottomIts weight hasn't changed, but it is more denseIt is true that a floating object displaces its weight in waterHowever, in order to float, the object must have a density that allows it to displace a sufficient amount of water before it is completely submerged I think the link below explains it better than the Wikipedia article doesAnd better than I can.
You could very carefully cut out the stars and even the lines between them with a razor knife and then put the cutout over another piece of paper that has a pattern on it so that the constellation itself will have some sort of textured look to it.
Hmm, maybe use small specs of aluminum foil? It will shine like actual stars.