Hey Viper,
In the 18 years that I have been doing rugs, this request has come in on several occasions. We always want to please the customer, so this is how I proceeded. The large pad was skinned 2/3rd's, or less, of the way off (leaving it attached to one side of the foot). This will allow you to get into that toe area to remove the bone, tendons and all the fat, to get that foot clean. Prior to tanning, sew that large pad back on with a good tight stitch. The foot should now resemble an open pita pocket. This will prevent the pad from curling during the tanning process,but allow the tanning solution to get in there and do it's work. Cannot stress enough how important it is to have that foot area "completely" cleaned out at this point! After the bear is tanned and ready to stretch, rehydrate the feet first before rehydrating the body and stretching. I usually rehydrate the feet for 1/2 hour or so,to soften the pads and loosen the toes a bit. Stretch your rug and pay close attention to the positioning of your feet. It would be a good idea to stretch this rug hair side down, to allow better circulation to get into the foot area, to promote even and definite drying.
Now I have had customers who want that pad visible on the rug and then I have had customers want the pad not visible, but accessible. On the latter, I simply run my finished material as I would on a regular rug but don't attach it to the foot. I adhere a piece of Velcro to the top of the large pad(closest to the small pads) and then the opposing piece of Velcro on the tip of the finished material. Now the customer can cover the pad and then detach the Velcro when they wish to view the pad(or show it off to their hunting buddies.LOL)
Hope this has helped answer your question. If you need further help, feel free to e-mail or give me a call.
Kind regards,
Mary Hilliard-Krueger
Mary's Wholesale Rugmaking
halflingrugger@cox.net623-582-0237