The best replacement for full moon is new moon.

The best alternatives to full moon are rated as following:
★★★★★  new moon
★★★  half moon
★★  lunar eclipse
★★  first quarter
★  blue moon
★  half moon party
★  high tide
  super moon
  troma
  at the new moon
  dark moon
  quarter moon
  crescent moon

Your alternative for full moon is not listed? Suggest!
Speaking about full moon, one probably shouldn't forget about wolf.

Other search terms related to full moon and their ratings are:
★★★★★ wolf
★★★★ olympic rings
You have in mind a companion for full moon and it is not yet here? Propose!



Google Trends

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full moon
new moon
half moon