Ipernity uses UTF-8, which does not support all latest Unicode symbols. The followings should at least work:

▀ ▁ ▂ ▃ ▄ ▅ ▆ ▇ █ ▉ ▊ ▋ ▌ ▍ ▎ ▏ ▐ ░ ▒ ▓ ▔ ▕ ▖ ▗ ▘ ▙ ▚ ▛ ▜ ▝ ▞ ▟ ■ □ ▢ ▣ ▤ ▥ ▦ ▧ ▨ ▩ ▪ ▫ ▬ ▭ ▮ ▯ ▰ ▱ ▲ △ ▲ ▵ ▶ ▷ ▸ ▹ ► ▻ ▼ ▽ ▼ ▿ ◀ ◁ ◂ ◃ ◄ ◅ ◆ ◇ ◈ ◉ ◊ ○ ◌ ◍ ◎ ● ◐ ◑ ◒ ◓ ◔ ◕ ◖ ◗ ◘ ◙ ◚ ◛ ◜ ◝ ◞ ◟ ◠ ◡ ◢ ◣ ◤ ◥ ◦ ◧ ◨ ◩ ◪ ◫ ◬ ◭ ◮ ◯ ◰ ◱ ◲ ◳ ◴ ◵ ◶ ◷ ◸ ◹ ◺ ◻ ◼ ◽ ◾ ◿ ☄ ★ ☆ ☇ ☈ ☊ ☋ ☌ ☍ ☎ ☏ ☐ ☑ ☒ ☓ ☔ ☕ ☖ ☗ ☘ ☙ ❧ ☚ ☛ ☜ ☝ ☞ ☟ ☠ ☡ ☢ ☣ ☤ ☥ ☦ ☧ ☨ ☩ ☪ ☫ ☬ ☭ ☮ ☯ ☰ ☱ ☲ ☳ ☴ ☵ ☶ ☷ ☸ ☹ ☺ ☻ ♧ ♨ ♰ ♱ ♲ ♳ ♴ ♵ ♶ ♷ ♸ ♹ ♺ ♻ ♼ ♽ ♾ ✁ ✂ ✃ ✄ ✅ ✆ ✇ ✈ ✉ ✊ ✋ ✌ ✍ ✎ ✏ ⛾ © ⚿ ✔ ← → ⋮⌛ ⛔ ❌

How these symbols become displayed on different operating systems and browsers also varies.

Coffee
☕☕☕☕☕⛾⛾⛾⛾⛾

Astrology/astronomy
☉ ☽ ☾ ☿ ♀ ♁ ♂ ♃ ♄ ♅ ♆ ♇ ♈ ♉ ♊ ♋ ♌ ♍ ♎ ♏ ♐ ♑ ♒ ♓

Weather
℃ ℉ ☼ ☀ ☁ ☂ ☃

Music
♩ ♪ ♫ ♬ ♭ ♮ ♯

Games
♔ ♕ ♖ ♗ ♘ ♙ ♚ ♛ ♜ ♝ ♞ ♟ ♠ ♡ ♢ ♣ ♤ ♥ ♦

Arrows
⇒ ⇨ ▶ ▷ ▸ ▹ ► ▻ ↻ ← ➽ ⬇️ ▶️ ↗️ ⏩ ⥅ ⎘

Some emojis
(^‿^) ツ (๏⏠๏) ʕꝊ◡Ꝋʔ ☹ ☺ ☻ ㋡ ㋡ ⍤ ⍨ ⍩ ⍥ 〠 Ѷ ﾂ ӫ

Stars & flowers
⭐★☆ ✩ ✫ ✪ ✰ ❀ ✿ ❁

Copyright
©

Some nice and colorful symbols working alright at least on Windows and Android
⛔ ❌✋ ✌ ✍ ☝ ⚡ ⛄ ⛅ ⚠️ ⏰ ✨ ❓ ❗ ⭕ ♿ ❤️ ⌛ ☔ ⬇️ ▶️ ↗️ ⏩ ⭐

Links
⇨ utf8 Icons ⭐⭐⭐⭐⭐
⇨ Lenny faces
⇨ UTF-8 Arrows
⇨ UTF-8 Miscellaneous Symbols
⇨ UTF-8 Dingbats
⇨ Kaomoji: Japanese Emoticons
⇨ Messletters for more symbols and even more
⇨ Text Symbols (Letters) at LingoJam