Imposition of ashes is done in Anglican churches in Canada, but only in the spiky (High Church) kind. I find it hard to square with Jesus' direction in the Book of Matthew:

(16) Moreover when ye fast, be not, as the hypocrites, of a sad countenance: for they disfigure their faces, that they may appear unto men to fast. Verily I say unto you, They have their reward.
(17) But thou, when thou fastest, anoint thine head, and wash thy face;
(18) That thou appear not unto men to fast, but unto thy Father which is in secret: and thy Father, which seeth in secret, shall reward thee openly.

I remember going to work after Mass and washing my face in the ladies' loo on the way in. I wasn't the only one, either.