Of this ilk.
Halfway down labelled *Lobe Knobs*
http://www.trendmachinery.co.uk/jigmaking/

Was browsing last week and found a site that done them cheaper but alas I
lost my bookmarks shortly after bookmarking the site and now I cant find or
even remember the name of the site.

Anyone come across these type with a URL?

Thanks.

--
Sir Benjamin Middlethwaite