Cis is helemaal gek van fluitjes. Hij zoek zelf de houtjes. Hiervoor stroopt hij de regio Oss af op zoek naar mooie takjes van linden-hout, liefst anderhalve centimeter (de middelvinger van Cis) dik. Hieronder staat een duidelijke beschrijving hoe het allemaal kan.
 Snij een stokske van een lindenboom in de lente en vroege zomer als de sappen nog driftig naar boven stromen. Zorg er voor dat er niet te veel zijtakjes aan zitten. |
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 Look for a willow stick where the space between two branches (buds) is as long as possible and with a constant diameter (1cm=0.4 inches or more). |
 Cut the willow branch perpendicularly to the direction of the stick with a sharp knife (Cuts are always in red). Cut the stick on the left later, when the whistle is finished. |
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 Remove the bark, so a ring is formed. Cut a flat notch on the top, but not too much on the right. Otherwise there is no place for the mouth piece. |
 Removing the bark is the most difficult part. Hold your right hand around the bark and firmly grasp the stick with your left hand. Turn the bark carefully.- If the bark doesn't move, lay the stick on your knees and tap at every spot with the handle of the knife. Then you can usually skin the stick and remove it to the right. |
 Cut the mouth piece perpendicular to the direction of the stick. |
 Cut a flat slice from the the mouth piece at the top, so that a stream of air is possible later. - Don't cut too much. It is better to extend later. |
 Put the tube from bark on the stick and fit in the mouth piece. The willow whistle is finished. You see the airspace (yellow) in the following drawing, which oscillates while blowing into the whistle. You can change its length. |
 The bark becomes dry after some days and the whistle no longer works |
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Cut the end on the right obliquely.