Please Read This First
Conditions Of Use
Tubes with two or more graphic elements are usually on separate layers.
Never a drop shadow on actual tubes or any images posted in gif format. 
All have been saves is PSP 5 format, so that they may be used with all versions of PSP.
You may save these most of my pixel graphics individually by right clicking on them because they are posted in gif format and have transparent backgrounds.  Exceptions to this rule are marked.  Or you may save them as a tube by just clicking on the graphic itself or in some instances on the text link below a group.
Eight Layers
Twenty-one Layers
This is actually drawn from my own book shelves that line one wall of my family room.
I've saved all the different components below.  Now this was a lot of work. *G*  Actually while I was working on these graphics I neglected dusting the real ones. lol
One Tube - 5 Layers