to offer lilith you could use,
- nagchampa incense
- rose flower
- a cup of black coffee without sugar
- a menthol cigarette (burned)
that should do :)
that's the best way for it. when u already got em all, meditate, focus your will to offer her.
NB : dont use any candle, the energy will be weak!! without any candle, its easier to feel her energy. :)