There's also https://github.com/salty-horse/ibus-uniemoji https://github.com/salty-horse/ibus-uniemoji if you want something a little more interactive. I wrote

There's also https://github.com/salty-horse/ibus-uniemoji https://github.com/salty-horse/ibus-uniemoji if you want something a little more interactive. I wrote https://github.com/sphaerophoria/ibus-memebox https://github.com/sphaerophoria/ibus-memebox for myself because I wasn't quite happy with the performance of any of the solutions I found.