I would say a circle shaped piece of wood (hollow) would float best because a normal piece of wood floats pretty well (square). But a circle piece of wood would float even better cause its even & hollow.
Witches.
shapes
it will float better in winter
yes but if you need it to float you better have it snorkeled
Create the bottom of the float so that it is black. Use glass tubes and other shapes illuminated with neon lights. Accent this design with some large mirrors to reflect the illuminated shapes and make an amazing effect. This float will work best if it is used at night/ in the dark. The light ruins the effect.
an object will float on salt water best
eggs float better with water and salt but they do not float in just water
Because its better then everyone else
Saltwater
yes
An egg will float better in salt water. The density of salt water is greater than regular water hence better floating by the egg.