How to make a Collapsible Biretta?

If you want to make a biretta by yourself, follow the instruction:

How to make a Collapsible Biretta

The most important thing is the carton you use inside.

I tried a Tetra Pak used for milk:

Quite good material to start because it is coated on both sides.

But too thin.

If you use the wrong cardboard, if will break if the biretta is folded often or

you will get bluges

You can try to cover your cardboard with foil to make it more stable and to avoid

disruptions and bluges.

I got quiet satisfied results with this method.

The best material you can use is pressboard/presspahn which
is used for isolation in the electrical industry.
The pressboard should be 0.6 mm/0.02 in thick.

For example:

PUCARO Elboard
or
KREMPEL Presspahn

Have a look at the shape of the horns (blades, wings):
Left a biretta I bought from Poland
Right a biretta from Italy

The silk pompons you need, you can order from Roman tailors. Prices are around 8-10 Euros per piece. These silk pompons (tuft, tassels) are the only ones which do not collapse and where the threads stand upright for a long time.

For an address list, click here.

If you use threads which are too heavy, it looks like that:

Or you use wool threads for the pompon and make the

threads a little bit shorter:

If you want to have an application cord over the edges

you can use twisted cord (not so nice)

 and laced cords,

which looks better and more professional: 

In Germany, Rabanus & Liebmann GmbH & Co. KG, Wuppertal have a

very hughe selection of these cords:

Have a look here.

And they have them in all colors:

Pattern Roman Catholic Biretta

Pattern Spanish Bonete