Step #1: Click the white space in the comment box or reply button first in order for the "Add Media" to show up.
Got permission to expand them and easy accessible, follow the site to support more of these~
( ´ ▽ ` )ﾉ Credits:
The amazing creator: huiro-chan
huiro's Weibo Site
huiro.deviantart.com/ (Go watch her please if you like her lovely creation )
Emoji Collections found here:
Super Kawaii Emoticon
Well, re-sizing is difficult, but with some work, I guess I can do it... maybe.
By the way, I know this is very unrelated BUT — have you ever thinking about making these icons a PLZ account instead than only using the thumb codes? In my opinion, using PLZ accounts are more efficient than having to go to the deviation page, copying the thumb code, then paste it to the message.
I know that making a PLZ icon is a lot of work, but this is only a suggestion~