Have any Wiccans out there tried to create a spell to induce LDs?
just curious 
a dream sigil would be most powerful
it could be a yantra,
a picture
you could draw it
and focus upon it, until you have photographic memory, then it will come up very strongly in NREM, often,
yantras are good, picking one to suit you
ejbarnes.com/chakras.html
for instance, the throat and heart chakras are good portals for lucidity, throat = dreams, heart = deep sleep,
Shiva discussed to master lucidity the heart chakra should be focused upon during sleep, the Dali Lama has said similar,
you could drawn your own symbol, focus upon it for an hour or two a day before bed, it will give you photographic memory.