Hi,
if you need to know what font was used go further down the page of comic of your inerest. there is an "additional information" panel. Go down to credits, where you find info to the lettering, pecils, inking and such.
If you find a font on the net, be sure to read the licence. Not all fonts are free to use for everything. This may not be an issue when making a birthday card for a friend or relative, but might cause problems when published on the net or larger comunity (e.g. book).
As to making your own font can be done by various methods and can be a lot of fun, but can also be somewhat time consuming. So you have to decide if your project is worth investing the time.