
The cap is the only part of the outfit you get to decide. Everything else is rented, identical, and chosen by someone else — so the cap ends up carrying the whole personality of the day, which is why it’s the thing that gets photographed.
Most guides to decorating it are galleries of finished caps. Useful for ideas, less useful at 11pm the night before when the letters won’t stick.
This is the practical version: the eight things you actually need, and the two mistakes that ruin it.
Before you buy anything
Check whether your school allows it. Most do. Some don’t, and a few allow decoration but ban anything that sticks up above the mortarboard. Two minutes on the commencement page saves you the entire project.
Don’t decorate the cap itself. This is the mistake everyone makes. Most schools want the cap back, the fabric doesn’t hold adhesive well, and anything you glue on is coming off with a patch of felt attached. Decorate a topper instead — it sits on top and the cap underneath survives.
The 8 things you need

1. A blank cap topper
A flat square, usually cardboard or acrylic, cut to sit on the mortarboard. This is what you decorate. It’s the difference between a project and a deposit you don’t get back.
Get one slightly smaller than the cap itself — a topper that overhangs looks wrong and catches the wind.
2. Adhesive that actually holds
Not a glue stick. There is wind at every outdoor ceremony ever held, and a glue stick will let go of your letters somewhere around the processional.
A mini hot glue gun is the right tool — cheap, fast, and it holds rhinestones and flowers in a way tape never will. Strong double-sided tape works for flat things like vinyl and cardstock.
3. Glitter cardstock
The most common base by a distance. One sheet covers a topper, it photographs well under stadium lighting, and it hides an uneven edge.
Buy a multipack. You will cut the first one wrong.
4. Vinyl letters
For the quote. Pre-cut adhesive letters look considerably better than handwriting unless you have a genuinely steady hand, and they go on in ten minutes rather than an hour.
Lay the whole phrase out before you peel anything. Centring by eye after the first three letters are down is how you end up with a quote that drifts.

5. Rhinestones
Flat-back, self-adhesive, in a variety pack of sizes. They catch the light in photographs in a way flat colour doesn’t, and a border of them around the edge takes about five minutes and lifts the whole thing.
Glue them anyway, even the self-adhesive ones. The backing gives up in heat.
6. Small artificial flowers
The floral cap is its own genre and it photographs beautifully. What you want is small — the heads want to be an inch or less, or the topper looks top-heavy and the whole thing pitches forward.
Cut the stems off entirely and glue the heads flat.
7. Metallic paint pens
For handwriting the quote if you’d rather, or for outlining, dates, small details around the letters. Gold and white on a dark base is the combination that reads from a distance.
Test it on a scrap first — some pens bleed on glitter card.
8. Bobby pins
The one everybody forgets. The cap does not stay on by itself, a decorated topper makes it heavier, and there is always wind.
Four pins minimum, pushed through the cap into your hair at the corners. Bring spares in a pocket — you will lend some.

Not making one?
Custom toppers are printed to order, which means two to three weeks between ordering and it arriving. That’s fine in March and a problem in May.
If you know what you want on it and don’t want to cut anything out, order early and it turns up finished.
Ready-made cap toppers on Amazon
One last thing
The cap is the part you decide. Almost everything else about graduation — what people give you, what they ask your mum, what ends up being a gift card you don’t want — is decided by other people guessing.
A registry answers that once, for everyone. GradFunded is free for graduates: cash gifts, gift cards, and anything you want from Amazon, on one link.
Start your free graduation registry
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