Have seen a few of these around, so thought I would #help out. Here are some interesting #hashtags around here on #mastodon

Monday - #Mondog #FotoMontag 
Tuesday - #ThickTrunkTuesday #TombTuesday 
Wednesday - #WaterfallWednesday 
Thursday - #ThrowbackThursday
Friday - #FollowFriday #FensterFreitag #JukeboxFridayNight 
Saturday - #Caturday
Sunday - #SilentSunday 
Nature - #Mosstodon #LichenSubscribe #Mushtodon #Nature 
Art - #MastoArt #Photography
Musicians - #MusicMonday 
For Twitter refugees - #FediTips #TwitterMigration #Introduction #riptwitter