Bands Unable To Come Up With Original Names For Themselves #2

Formula: take a single word and double one of the constituent letters
Anciients
Desiigner
Fawnn
Flaamingos
Gnoomes
Gravves
Jawws
Liines
Lovvers
Mmoths
Pawws
Poemss
Slavve
Suuns
Traams
Vaniish
Watter
Wavves