You can light and savor these candles, as the non-toxic paint will burn along with the wax. Just like with any other candles, please ensure you light them in a well-ventilated area and adhere to standard candle safety precautions.
such as never leaving them unattended
avoiding drafty locations
using an appropriate candle holders
refraining from placing them on or near heated surfaces
and keeping them out of reach of children and pets.