Dizzy is a character created by The Oliver Twins. I took the base sprite for this series from the game Dizzy: Prince of the Yolkfolk, which was developed by Big Red Software and published by Codemasters. If any right-holders are uncomfortable with my usage of the character and the sprite, please let me know.
As said, I took a sprite from Dizzy: Prince of the Yolkfolk, and made a bunch of emoticons based on that. If you'd like to use them, you can copy them from here. I have tried to somewhat sort them by emotion, but there are a lot of variations, so you might have to look for a bit to find the best fitting one. I also made an AutoHotkey script that will let you type them all.
These are so small that they won't increase the height of your lines (unless you use a very small font size, of course).
To be able to use all of these emoticons on your computer without having to look them up every time, you can download the AutoHotkey script. AutoHotkey is a free, open-source scripting language. Install the program from the official website, download the script and put it in the folder you find when typing Windows + R and then entering "shell:startup". Now, the script will always be loaded.
To use an emoticon, simply type a 'd' and then the name of the emoticon. For example, typing deek will replace that text with [img]https://i.imgur.com/FViUh4y.png[/img], which will show up as the Dizzy Eek emoticon on any website that uses BB codes to display images (which includes forums and message boards).