[quote="Joannm, post:6, topic:188150"]
They have started this at my home parish (where I usually don't attend) and when I heard about it I wrote a letter to the pastor addressing my concerns. Since I am on the diocesan liturgy commission I also brought it up there. All on the commission agreed that it was not a good thing to do since liturgical vessels should be used only for the purpose they are intended for. I am concerned that kids might use it to drink out of when mom isn't around, that it could get knocked around or dropped. I think there are better ways to pray for vocations. At my work parish we started a monthly holy hour specifically to pray for vocations.
It seems to me that time set aside for prayer before the Blessed Sacrament - a holy hour - would probably be the best way for laity to pray for vocations, or indeed a Holy Mass offered for the intention on a set day each month/week. I know that each Thursday in my cathedral the Rosary which is prayed each day after Mass is offered for vocations.
No one will deny that prayer is central to attracting vocations - prayer should be central to our lives as Christians anyway - but I always wonder what are these parishes/dioceses actively doing to promote vocations. I mean, prayer will go a long way, but as I see it, one of the surest ways of attracting men to priesthood is holy and orthodox priests. A priest may say a prayer for vocations after Holy Communion but if the Mass he has just celebrated has been casual, an "improvised" missal, or full of abuses can he reasonably expect his prayer to bear much fruit? Certainly what inspires me and gives me a greater love, understanding and appreciation of the Holy Mass is when a priest celebrates the Mass with great reverence and devotion, following the missal and showing great care for the Blessed Sacrament. Outside of the church building, we all have a duty to ensure that priesthood and religious life is presented as an option to young people and that they will be supported if they say "yes"...
As to the O.P.'s question, I'm not sure if there's a document that says that such a practice is wrong - and I doubt there's one stating explicitly that it's ok. My view would be that it should be used for its purpose - holding the Precious Blood at Mass. I think using the chalice in a Mass offered for vocations would be putting it to better use. The GIRM  says that the sacred vessels "are held in special honour" because of their purpose - surely the greatest honour which can be given to it is to let it "do its job" and hold the Precious Blood?