[@Kafka Komedy] The only things that came to my mind are some Japanese flower names. Maybe since Deku is a two syllable word with hard consonants, maybe something similar would roll off the tongue? Something like Kiku (chrysanthemum), Hana (flower, generic), Momo (peach), Yuuka (gentle flower), or Chika (thousand flowers)? That's all I've got, hope it at least gets your brain juice flowing.