Thanks for your nice comment on my challenge card. You asked about the Baby oil blending! Someone on this site told me her secret about this. Wish I could remember who! I purchase these stumps at Hobby Lobby by the colored pencils. Gina K uses a product called Gamsol. I think it would smell more like a mineral spirits. The one told me she liked the baby oil because it smells so good. One of Gina's video she uses the gamsoll and shows how the sharpen the stumps with an emery board. Hope this helps.