Looked everywhere online and haven't seen anything beside numerals of other African countries. I did find Somali Osmanya... not sure if that is official and it's very similar to Oromo.
Tattoos are haraam naaya, waa maxayhttps://www.afrikanistik-aegyptologie-online.de/archiv/2012/3553/
Some of these numerals are so beautiful
Would be great for a tattoo