I created https://pokemoncries.com because my girlfriend said she was really good at this as a child and I thought she would like it. She LOVED it. I polished it a bit more after this and posted it on reddit. I was amazed by the reactions/usages. People did “Pokémon cry challenges” on YouTube and it was quite viral in the Pokémon community. It has still good metrics and I updated it with the last generation. I just like that people have fun with it, I don’t think much more will come out of it.
I also created https://anagrams.io with her/for her, but that was mostly because she was so excited about it.