aestheticsymbols
Use in a combo

White bishop copy & paste

♗ is white bishop, a plain-text Unicode symbol from the Miscellaneous Symbols block. On Aesthetic Symbols it lives in the charms & marks collection. 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+2657
HTML entity
♗
CSS content
\2657
JavaScript
\u{2657}
UTF-8 bytes
E2 99 97
Made of

U+2657 ♗ · Miscellaneous Symbols

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.