I don't think the Lindt dark chocolate bunnies are - well not the ones I saw anyway, but the Lindt 70% dark range is - they do a plain egg and smaller eggs.
Yes the Queen Anne dark marshmellow eggs are delicious - I brought some of them for next Sunday!
Silky Oak dark chocolate is also dairy free, and it's delicious too, a nice thick shell - it may be too late, but you can order online
link (the online price is half what I paid at Kirk's
)