Radioactive markings for a decal. Do I have to print my own and is it difficult to do?

I am also looking for O Scale hazard decals.  Any sources?

I have seen comments on OGR about people printing their own decals.  Any thoughts on doing that for a hazardous materials decal?  Do I need software and a photo to scale down or what?

Show some samples of what you are looking for. Printing your own is not that hard. Show me what you are looking for...maybe I can help.

I get things like that out of safety and sign catalogs. One is named Seton Name Plate Co. All the signs are shown in the catalog at the perfect size for o-scale. There are even " radioactive" signs.

Alan Graziano

here is an example of using the Seton safety pictures.

I was looking for something like these:

Hopefully something the size that I could put on the side of a barrel or wooden crate or cannisters like are used on the 6805 type Lionel cars

For a moment I thought you actually wanted markings that were radioactive so they glowed in the dark like old watch dials.

The plan is to make the container/cannister have a lighting effect that could resemble a radioactive situation or a leak.  The label and/or markings would make it easier for people to associate the cause of the strange lights, etc. 

Try Google - look for images of signs; far more available than you will ever need.

Could make decals or you could just print them out after re-sizing them; depends on the surface that you want to add them onto; no need to over-complicate things

A lighting effect?  Try a nice blue glow like in the core of a reactor....