Customizing can be a fun, but dangerous hobby. These tutorials are contributed by other customizers. Some of the things recommended in the tutorials may be dangerous, such as the use of boiling water or sharp objects. You shouldn't attempt anything mentioned without adult permission and supervision. Figure Realm and/or the authors of the tutorials are not liable for any injuries or damages occurring from any attempt to follow suggestions in these tutorials.
These are just your average LED you can buy at most electronics stores or online. Revisiting this, I would use a smaller LED. The ones I used are 3mm, but I now know they come in slightly smaller sizes.