Yes Eureka miniatures make all these.
www.eurekamin.com.authey include
Heronimous Pratt and his Audio Hatt
Professor McHoots and his circular boots
Professor Niagra and his Ocular Viagra
I have all of these and they are a lot of fun. Unfortunately for Heronimous he has come a cropper in our latest Zambesi adventure
(Blown apart by friendly fire!) .
cheers
Fuzzy.