Method for producing a tool including a sheet

A method for producing a tool comprising a sheet, the method comprising the steps of:

• providing a first paper sheet;
• attaching first and second plastic layers each to one side of said first paper sheet;
• upon said attaching, placing said second plastic layer on a bench, and placing a first side of a plastic object on said first plastic layer;
• pressing a metal object on a portion of a second side of said plastic object;
• vibrating said metal object parallel to said first plastic layer together with said pressing thereon,
• thereby said second side of said plastic object produces friction with said metal object, being sufficient for avoiding motion in relation thereto, and
• said second plastic layer is sufficiently thick to produce friction with said bench for sufficiently avoiding motion in relation thereto,
• thereby said vibration of said metal object rubs a portion of said first side of said plastic object on a portion of said first plastic layer and in relation thereto to heat said rubbed portions for melting thereof;
• and
• ceasing said vibrating, thereby ceasing said heating,
• wherein said first plastic layer is sufficiently thick for connecting said rubbed portions upon said melting and upon said ceasing said heating.