Hi Davis, I use a slat bender.

It's awesome.

Advantages:
Easy to use.
Inexpensive.
Not dangerous.
Does not require electricity.
Get the radius of curvature you want.

Disadvantages:
It leaves notch marks on one side of the strips (very unsightly).
If this side is not visible then there is no problem.

Depending on what timber it is, I suggest hold over a boiling kettle or pot and hold the bending tension on it as you pass it over the hot steam. If successful you will feel the timber start to bend as it heats. Otherwise laminate from thinner strips and do it over a former with rad you want. Good luck. Ian