I just learned about Cree syllabics from a comment on another SE. According to the wiki (emphasis mine)
Canadian Aboriginal syllabics are unique among abugida scripts in that the orientation of a symbol, rather than modifications of its shape or diacritic marks, determines the vowel of a syllable. Each basic shape corresponds to a specific consonant sound; this is flipped or rotated to denote the accompanying vowel.
For example, the glyphs ᑕ, ᑌ, ᑎ, and ᑐ represent the syllables ta, te, ti, and to, respectively.
English has palindromes and words that look the same upside down when written in a certain case and font, e.g., "pod". But the typography of Cree syllabics opens up whole new possibilities for palindrome-like constructs. For example, you could potentially have text in a 2D grid that reads intelligibly but differently depending on the orientation of the page.
Do such texts exist? Are there any well-known examples?