I've created two websites, both are free, where you can create your own tools and share them:

https://givemetranslator.com - Create various fun and interesting translators for free, such as dog translators, etc.

https://givemecalculator.com - Generate various calculators with beautiful interfaces for free, which can be used to create mathematical, financial, or humorous calculators, like the "niuma" (slang for "awesome/terrible") calculator.

Make your funny ideas real and share them with your friends.