Aside from being a very unique and exciting invite, it can also allow
you to set up what type of event will entail. With basic invitations
it is hard to fit in everything that will take place. Typically there
is only room for the time, date and location of the party. But on the
unique invitation, there is much more room to fit all of the details
on the shirt.
If you are going to have a band, put on the screen printing tee shirt
who will be performing. If there will be a barbecue and games, entice
people to come with these details. But most importantly, make sure
that it is known that you are the birthday girl or birthday boy and
this is a special day that you deserve.