Cursors/Third Party Programs

There have been many people I've watched that have different cursors than the usual cursor, we have had the LEGACY CURSOR (golden glove) for about since beta now, and I've always wondered if there's any way or program RIOT allows for the players to make/customize/get through Third Party Programs, because I dislike the new cursor and the legacy cursor, and I just really want to know if there's a way I can get something else and new, like the STARCRAFT II cursor, or one of them on a program used a long time ago called MKJogo or MKLol.