I have the Mountain Horse Richmonds which I love (which now seem to be discontinued!) and I went to put spurs on yesterday only to realize they have no spur rests and the spurs kept slipping. What do you all do if you have no spur rests on your boots or is that a deal breaker for boots??
Thanks!
Make sure the straps are all snug and in the right spots. 
Then try this type of spur. I use these and though not perfect, they certainly do work better with no spur rest than plain spurs. These are rubber coated. http://www.doversaddlery.com/rubber-coated-spurs/p/X1-25016/
I rarely use a spur rest, even if it’s on the boot. I often find the rest is too high and puts the spur where I do not want it, so I don’t use it.
If the spurs won’t stay put, make sure they are women’s spurs and that the straps are in the right places. You can also bend the branches in a bit to snug up the fit.
My customs don’t have spur rests, and as long as the spur fits the boot and the straps are tight, they don’t budge. I am with RugBug in that I find the rest is too high for my tastes on most boots.
I have a pair of Ariat dress boots that I only use for shows, and they came without spur rests. It drove me crazy because no matter how I tightened and adjusted the spurs they would slip all the way down to my heel. I tried adding rubber spur covers but it just didn’t help. (I think whether you can make things work depends on the shape of your boots and spurs.) I finally paid to have a harnessmaker/leather repair man add spur rests. SO much better! However, it was pretty pricey so next time I’ll probably consider a lack of spur rests a dealbreaker.
Disclaimer: dressage rider here, so I may want my spurs to sit differently than you want yours.
you could try those rubber lined spurs:
http://www.doversaddlery.com/hs-ultrafit-xtragrip-rndnck/p/X1-25186/?ids=kc5as5xyjynmaq4ywxjmcheh
I haven’t personally used them, but maybe they’d work?
I think I need to take the boots in and see what works. Those rubber lined ones might have promise!
Just squeeze the metal branches to make the spur skinnier.
If you like the spurs you use, instead of buying new spurs with rubber, try these:
