I use Knipex Super Knips (*peers* 78 03 125) - the sort of thing you'd use for cutting the leads off through-hole components after soldering. While those are probably almost as expensive as your Snap-On ones, you should be able to find a cheaper, more cheesy substitute from an electronics supplier. Cable ties are much softer (and often a lot bigger) than LED legs.
(For stripping wire I use a set of dirt cheap strippers with the locking nut undone, and replace them every few years when they get blunt. I've been stripping wire regularly since I was a child, and unless it's especially huge or delicate I can do it accurately by feel, which is quicker than using a better quality stripper where you have to set the diameter. It's not an approach I'd particularly recommend, thobut.)