Here is a page on BOX DRAWING CHARACTERS aka ASCII CODE PAGE 437
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marquee experiments


This is what they look like when encoding is borked.
░▒▓│┤╡╢╖╕╣║╗╝╜╛┐
└┴┬├─┼╞╟╚╔╩╦╠═╬╧

or forget what I'm talking about:
0 1 2 3 4 5 6 7 8 9 A B C D E F
B │ ┤ ╡ ╢ ╖ ╕ ╣ ║ ╗ ╝ ╜ ╛ ┐
C └ ┴ ┬ ├ ─ ┼ ╞ ╟ ╚ ╔ ╩ ╦ ╠ ═ ╬ ╧
D ╨ ╤ ╥ ╙ ╘ ╒ ╓ ╫ ╪ ┘ ┌

Maybe (perhaps) we should (shall) call (address) them circumflexed a characters(?)

UTF-8 HAS THE ANSWER
& and # and dec or x for hex
─━│┃┄ ┅┆┇┈┉ ┊┋┌┍┎ ┏
┐┑┒┓└ ┕┖┗┘┙ ┚┛├┝┞┟
┠┡┢┣┤ ┥┦┧┨┩ ┪┫┬┭┮┯
┰┱┲┳┴ ┵┶┷┸┹ ┺┻┼┽┾┿
╀╁╂╃╄ ╅╆╇╈╉ ╊╋╌╍╎╏
═║╒╓╔ ╕╖╗╘╙ ╚╛╜╝╞╟
╠╡╢╣╤ ╥╦╧╨╩ ╪╫╬╭╮╯
╰╱╲╳╴ ╵╶╷╸╹ ╺╻╼╽╾╿
▀▁▂▃▄ ▅▆▇█▉ ▊▋▌▍▎▏
▐░▒▓▔ ▕▖▗▘▙ ▚▛▜▝▞▟
■□▢▣▤ ▥▦▧▨▩ ▪▫▬▭▮▯
▰▱▲△▴ ▵▶▷▸▹ ►▻▼▽▾▿

At this point, I'm willing to say
forget what we as a species have placed
on our deep space probes (pioneer plaque,
golden record stuff)... Well, not forget
but send out another with this fantastic
portion of the character set.

◀◁◂◃◄ ◅◆◇◈◉ ◊○◌◍◎●
◐◑◒◓◔ ◕◖◗◘◙ ◚◛◜◝◞◟
◠◡◢◣◤ ◥◦◧◨◩ ◪◫◬◭◮◯
◰◱◲◳◴ ◵◶◷◸◹ ◺◻◼◽◾◿


☀☁☂☃☄ ★☆☇☈☉ ☊☋☌☍☎☏
☐☑☒☓☔ ☕☖☗☘☙ ☚☛☜☝☞☟
☠☡☢☣☤ ☥☦☧☨☩ ☪☫☬☭☮☯
☰☱☲☳☴ ☵☶☷☸☹ ☺☻☼☽☾☿
♀♁♂♃♄ ♅♆♇♈♉ ♊♋♌♍♎♏
♐♑♒♓♔ ♕♖♗♘♙ ♚♛♜♝♞♟
♠♡♢♣♤ ♥♦♧♨♩ ♪♫♬♭♮♯
♰♱♲♳♴ ♵♶♷♸♹ ♺♻♼♽♾♿
⚀⚁⚂⚃⚄ ⚅⚆⚇⚈⚉ ⚊⚋⚌⚍⚎⚏
⚐⚑⚒⚓⚔ ⚕⚖⚗⚘⚙ ⚚⚛⚜⚝⚞⚟
⚠⚡⚢⚣⚤ ⚥⚦⚧⚨⚩ ⚪⚫⚬⚭⚮⚯
⚰⚱⚲⚳⚴ ⚵⚶⚷⚸⚹ ⚺⚻⚼⚽⚾⚿
⛀⛁⛂⛃⛄ ⛅⛆⛇⛈⛉ ⛊⛋⛌⛍⛎⛏
⛐⛑⛒⛓⛔ ⛕⛖⛗⛘⛙ ⛚⛛⛜⛝⛞⛟
⛠⛡⛢⛣⛤ ⛥⛦⛧⛨⛩ ⛪⛫⛬⛭⛮⛯
⛰⛱⛲⛳⛴ ⛵⛶⛷⛸⛹ ⛺⛻⛼⛽⛾⛿
✀✁✂✃✄ ✅✆✇✈✉ ✊✋✌✍✎✏
✐✑✒✓✔ ✕✖✗✘✙ ✚✛✜✝✞✟
✠✡✢✣✤ ✥✦✧✨✩ ✪✫✬✭✮✯
✰✱✲✳✴ ✵✶✷✸✹ ✺✻✼✽✾✿