Half of the images are 50 X 50 and half are 25 X 25 and you can download any of them by right clicking on the image and select 'save picture as' or 'save image as', etc.
These are in the .png format, and what I call Doodles n' Things.

blue coil sm

blue corrosion arrow small

blue satin arrow small

bronze arrow small

checkerboard arrow small

cream arrow small

cubed iron sm

coil gold sm

blue satin arrow

bronze arrow

checkerboard arrow

coil gold

cream arrow

cubed

cubed blue

cubed green

blue corrosion arrow

cubed pink

cubed red

cubed redmatte

cubed saturn blue

cubed iron

cubed blue saturn

Checkered-Ball

Blue-Metal