For eggless salad use the tofu that comes in the tub, not the shelf kind.
Drain and press as much liquid as you can from the tofu. Crumble, then add
onion, celery chopped as you like it, you could also grate some carrot and
add if you wish. I use Nayonaise fatfree and you could put in a little
mustard too. Easy and very good.
For the person making carrot/raisin salad, I would use the Nayonaise for that
You can experiment a bit with Nayonaise, adding a bit of other fatfree
dressings to taste. Naynaise is made primarily from silken tofu. You can
buy the regular or fatfree. Why buy the regular when the fatfree tastes the
same (to me.)