1) Yes. As long as the element DOESN'T PERFECTLY MATCH another element.
Some of the skinners here ask permission to the original authors for some elements. Some of them replicates an element (like me in some cases) and some of them places an element that he/she didn't create for the sake of his/her skin (illegal here, but not in pages and signatures).
2) Google is your best friend if you don't like to do the hitsounds in a hard way. The template skin is also your best friend too. Some of us (RARELY... I MEAN IT...) uses a Digital Audio Workstation / DAW in making hitsounds. Best examples of these are FL Studio and Cubase. If you want to know the actual sounds of the default skin, simply go to the first page of this thread. There's 2 links available; the choice is still yours.
Some of the skinners here ask permission to the original authors for some elements. Some of them replicates an element (like me in some cases) and some of them places an element that he/she didn't create for the sake of his/her skin (illegal here, but not in pages and signatures).
2) Google is your best friend if you don't like to do the hitsounds in a hard way. The template skin is also your best friend too. Some of us (RARELY... I MEAN IT...) uses a Digital Audio Workstation / DAW in making hitsounds. Best examples of these are FL Studio and Cubase. If you want to know the actual sounds of the default skin, simply go to the first page of this thread. There's 2 links available; the choice is still yours.