Historical clue formulations

• Twitch user, perhaps — 2022-05-15
• Twitch.tv user — 2020-08-30
• Bit of party decoration — 2020-01-12
• Bit of party décor — 2014-12-09
• Band seen at parties — 2007-10-20
• Party decoration — 2003-09-12
• Parade decoration — 1998-10-11
• Decoration for a newlywed's car — 1997-09-28
• Decoration for a parade — 1996-09-14