This "questionable" tool was created as an exercise in C# and .NET core.
It is based on challange by Andrew Rosenwinkel published on edabit.com
You can test the tool by using a web app.
How it works:
Consonant starting words: move consonants from the begging of the word to the end and add "ay".
Vowel starting words: add "yay" at the end of the word.
apple > appleyay
edit > edityay
elaborate > elaborateyay
car > arcay
fallout > alloutfay
translator > anslatortray