aestheticsymbols
Use in a combo

Sparkle dot copy & paste

・゚✧ is sparkle dot, a plain-text Unicode symbol built from several characters from the Halfwidth and Fullwidth Forms and Dingbats blocks. On Aesthetic Symbols it lives in the sparkles & glitter collection, tagged sparkle. As plain text it takes on the font and colour of wherever you paste it — a bio, a username, a caption or a stream title.

Unicode
U+FF65 U+FF9F U+2727
HTML entity
・゚✧
CSS content
\FF65 \FF9F \2727
JavaScript
\u{FF65}\u{FF9F}\u{2727}
UTF-8 bytes
EF BD A5 EF BE 9F E2 9C A7
Made of

U+FF65 ・ · Halfwidth and Fullwidth Forms

U+FF9F ゚ · Halfwidth and Fullwidth Forms

U+2727 ✧ · Dingbats

Will it show up? · Long-established text symbols

Plain-text characters from blocks that mainstream desktop and mobile fonts have covered for years. These are the safe ones.

Worked out from how each character is encoded, not from a test on a real device.