One of our Frosted family asked for inspiration for an upcoming first communion... My thoughts are why not do something ultra girly, like pink... but keep it also simple so that you don't lose focus on the religious aspect of the event.
Here are a few thoughts....
I love the idea of doing a take on a wishing tree... why not have this as your centerpiece and have guests write spiritual thoughts or guidance for her. Source
I think fun elements like ice cream or slushy drinks to match the occasion would be kid approved and still appropriate for the gathering. Source and recipe
Don't shy away from trendy party elements, just make sure they aren't too "loud" of a theme... it's the year of the donut, so why not display some of them in color coordinated cupcake liners! Source
I think favor boxes would be fun to do! There are so many readily available religious items (even from the dollar store!) that would make for great gifts for everyone to take home! Source
How adorable are these communion dress cookies?!? What a sweet idea! Source
Another treat idea would be a small cross topped cupcake (sorry donuts, we still want our cake!) Source