Let us not use the Mass to decorate political or secular events

[78.] It is not permissible to link the celebration of Mass to political or secular events, nor to situations that are not fully consistent with the Magisterium of the Catholic Church. Furthermore, it is altogether to be avoided that the celebration of Mass should be carried out merely out of a desire for show, or in the manner of other ceremonies including profane ones, lest the Eucharist should be emptied of its authentic meaning.

~ Redemptionis Sacramentum