As far as I know WMP is still technology impared (no website) but that doesn't stop them from putting out a great product. I've had my Punch Set for at least 10 years and they work great.
D&J Hobbies lists WMP products on their website:
djhobby.com
And Brookhusrt lists them with pics:
brookhursthobbies.com
But I got mine right from the source:
Waldron Model Products
PO Box 431
Merlin, Or. 97532
541-474-3226