I am making a completely around crown. Not just a half tiara.

Using a coffee can,  but having trouble getting the RI on the sideways. Any ideas on how to angle the can so I can work all the way around without messing the RI design? Hope  someone can understand what I'm trying to do. 

thanks

Could you wrap the can with parchment or wax paper?

Or lay 2 cans flat, securing the so they don't wiggle. Then place a sheet of parchment with the desired design painted on around it and pipe half half. Let dry, release them, stand them up and join them with a few drops of RI? But make sure you get your measures right otherwise they will be oval.

crowns to me are not straight up and down they are usually wider at the top -- so i would cut some foam* to use as a former -- and i would maybe pipe it upside down -- with the wider part on the table so it would be easier --

*if you can make a parchment cone -- you could get a piece of stiff plastic (like laminated paper or heavy paper covered on both sides with wide packing tape) and make a cone the size you need -- just staple it shut and trim it to sit flat -- put your pattern on that and away you go --

but as far as being able to get up to it -- find a small cake pan, a cottage cheese container or something to set it on -- look around and find just the right size so you can get your hands/piping bag up to it