Buddhists do not pray to gods, we however pay reverance, respect
to the Buddhas and Bodhisattvas.
Buddhas and gods are not the same. Buddha is someone enlightened
and liberated from the wheel of samsara (the world of suffering)
and rebirth. However, gods are still within the wheel of samsara,
and have not been liberated from rebirth.
We too, are taught to practice and attain Buddhahood for
ourselves. All of us have Buddha-Nature, and can attain
Buddhahood.
Buddhists do not give material goods back to the Buddhas and
Bodhisattvas.
You're mistaking the Chinese folk religion with Buddhism.