This one I came across at a maple nursery the other day. Supposedly, or possibly a hybrid of a siebald maple x Shishigashira, hence the name it was given, 'Lion Cub' It was discovered at Hillier arboretum, and is only just beginning to be grafted for production, I think the nursery I found it in might currently be the only one to get their hands on it, so lucky me, I might be one of the first people to get it as well!