I have really only found two-only one is are on PT exercise lists. The one on the lists is the 'towell curl your toes' one... Never could do that even when I'd had 'good feet'! The one I've found works best for me is the marble one...

Get a dozen marbles, put them on a towell on a big tray and a bowl of some sort...the goal is to get and release the marbles into the bowl .... The first week I did this? I had the worst foot pain imagainable! I couldn't spread my toes to 'get' the marbles as they just did not work? So I'd mash them inbetween the toes and let gravity drop them into the bowl. It got easier after a while tho. But, it worked out and those digits did get more flexible after a few weeks of careful exercise. This is NOT one you want to go and do full out right off for sure! Your whole foot will complain loudly if you try.

When we have PN, we do NOT use our feet properly, including the toes. Like other muscles and attachments these become lax or contract thru disuse.

GOOD Physical therapists can and are useful to getting one to 'walk' more normally and use the body more like we should similar to before all our pain defense mechinisms did that good old number on us. That includes the toes?
I understand your physical and other limits tho... Who knows? You mite find someone and get lucky.....

Toe exercises are limited, as shown here under 'toe':
http://www.fairview.org/healthlibrar..._index_2.htm#T

Wish there were more to contribute. And yep those dangling digits are disconcerting!

Try playing with marbles - at our age, why not? 's - j