1. Using a 3/4-inch diameter ball of fondant, mold a cone base approximately
1-1/2-inch high.
2. Roll a 3/8-inch diameter ball of fondant.
3. Flatten this ball into a circular petal about 1/4 inch thick on bottom
and thin on the top. Make about the diameter of a nickel. Make several
petals this size.
4. Wrap first petal around the point of the cone to form a bud.
5. Press three more petals around the base of the bud. Gently curl edges
of petals.
6. Make five more petals using slightly larger balls of fondant. Flatten,
then thin edge with finger and shape petals. Press petals under first row
of petals. Continue, placing petals in between and slightly lower than
previous row.
Fondant roses never dry real hard. If you want to get more creative,
try making these using gumpaste.
Many many tools are available from here.