Oboe Thumb Rest

I have a thumb rest with a ring and was using a clarinet thumb cushion because there were none for oboe at my local music store. I was so excited to see people made things like this and I am glad I bought it!

Very well made but doesn't fit my instrument very well (Buffet Crampon Paris, actually made in Austria). Recess not deep enough and had to carve 2 corners off to enable me to engage hook of my neck strap.