Table 1.

Pictures of the objects with measured physical characteristics

Name	Picture	Material	Diameter (mm)	Texture	Shape	Hole diameter (mm)
S+		Solid plastic	16	Smooth	Sphere	1.5
S− 1		Solid plastic	13.5	Paint 0.25-mm depth	Oblong sphere14.75-mm width	1.5
S− 2		Solid plastic	13	Molded 0.5-mm depth	Sphere	1.5
S− 3		Plastic “cinnabar”	15.25	Carved 1–2 mm depth	Oblong sphere 16.5 × 15 mm width	2.25
S− 4		Wooden shell	16.5	Mini plastic beads around shell 11 per row, 21 rows Small bead size: 2 × 1.5 mm	Sphere	0
S− 5		Wooden shell	15.5	Mini plastic beads around shell 10 per row, 16 rows Small bead size: 2 × 1.5 mm	Cylinder 16-mm width	5
S− 6		Wooden shell	14	Mini plastic beads around shell 9 per row, 14 rows Small bead size: 2 × 1.5 mm	Cropped sphere 15.5-mm width	3