Here's a try: Aviform: ︷ U+FE37 PRESENTATION FORM FOR VERTICAL LEFT CURLY Circle: ◯ U+25EF LARGE CIRCLE Claviform: 1 U+0031 DIGIT ONE (Or anything confusab

Here's a try: Aviform: ︷ U+FE37 PRESENTATION FORM FOR VERTICAL LEFT CURLY Circle: ◯ U+25EF LARGE CIRCLE Claviform: 1 U+0031 DIGIT ONE (Or anything confusable with it [1]) Cordiform: U+2661 WHITE HEART SUIT Crosshatch: # U+0023 NUMBER SIGN Cruciform: × U+00D7 MULTIPLICATION SIGN (or anything confusable with it [2]) Cupule: U+26AC MEDIUM SMALL WHITE CIRCLE Dot: · U+00B7 MIDDLE DOT (or anything confusable with it [3]) Half Circle: ◡ U+25E1 LOWER HALF CIRCLE Line: ⎯ U+23AF HORIZONTAL LINE EXTENSION Negative Hand: U+1F91A RAISED BACK OF HAND Open Angle: ⦣ U+29A3 REVERSED ANGLE Oval: ⭖ U+2B56 HEAVY OVAL WITH OVAL INSIDE Positive Hand: U+270B RAISED HAND Quadrangle: ▭ U+25AD WHITE RECTANGLE Serpentiform: U+1F40D SNAKE Spiral: 1F300 CYCLONE Tectiform: ⤉ U+2909 UPWARDS ARROW WITH HORIZONTAL STROKE Triangle: ▽ U+25BD WHITE DOWN-POINTING TRIANGLE Zigzag: ⦚ U+299A VERTICAL ZIGZAG LINE Edit: formatting. [1]: https://unicode.org/cldr/utility/confusables.jsp?a=1&r=IDNA2008 https://unicode.org/cldr/utility/confusables.jsp?a=1&r=IDNA2... [2]: https://unicode.org/cldr/utility/confusables.jsp?a=%C3%97&r=IDNA2008 https://unicode.org/cldr/utility/confusables.jsp?a=%C3%97&r=... [3]: https://unicode.org/cldr/utility/confusables.jsp?a=%C2%B7&r=None https://unicode.org/cldr/utility/confusables.jsp?a=%C2%B7&r=...