Invertobang

My 8-year-old asked me "In Spanish, I need to use an upside-down interrobang at the start of the sentence‽" (I assume the answer is yes!)

A little while later, I thought to check whether Unicode defines a codepoint for an inverted interrobang. Yup: ‽ = U+203D, ⸘ = U+2E18. Nice.

(And yet we don't have codepoints to differentiate between single-bar and double-bar "cifrão" dollar signs...)