Take a thick paper for office equipment. Draw on a sheet of paper petal with a base of 3.2 cm and a length of 22.4 cm Side parallel to the base equal to 9.5 cm and has a slight tuck up. Each petal of the bell length is not a straight line and a smooth transition.
Cut out one template and trace it with a pencil outline to get 10 petals. When you cut the workpiece, leave each of them with the left side cut a width of 0.5 cm This piece is needed to glue the next petal.
Cut the edge in several places, so it can be easy to bend. Do not use ordinary paper and carpenter's glue. It is better to stick together not in a chain one after another, and in pairs, then glue pairs. Allow to dry each glued seam, otherwise in gluing the petals following the previous stitches can unravel.
The neck of the horn has a conical shape. Draw a straight line with a length of 35 cm put the Compass into the base line and draw a arc of radius 7 cm, and another 31 see on the one hand leave the edge width 0.7 cm for gluing. Glue the cone. After drying make 10-12 cuts of 1 cm in length on the narrow side of the cone for gluing nozzle.
The pipe is comfortable to glue on a wooden disc with a diameter of 2 cm to easily remove the finished pipe wrap on a pig greased with glue strips of paper width of 4 cm, while the wall thickness of the pipe will not reach 1.5 mm. After drying, remove the pipe blanks.
Cuts cone grease glue inside and insert the nozzle. Additionally, seal the top strip of paper in a circle.
Fold the finished side of the mouthpiece so that the neck was part of the trumpet from the inside to a depth of 0.6-1 cm Neatly podmate edge of the socket, around the circumference of joiner's glue, by bending the neck with your finger inside. Cover outside, and after drying is from the inside layer liquid joiner's glue. The horn will be solid. If you want you can cover the mouthpiece of varnish or paint. It will noticeably amplify the sound. The same pattern can be made the mouthpiece of tin, only the joints need to be able to connect by soldering or the castle.