It's too bad there's no open source version of something like Print Shop Pro.
I find LibreOffice to be very buggy when trying to design signs and banners (at least on the Raspberry Pi, some features don't work properly with huge fonts, and the option to print a large banner spread across multiple pages doesn't seem to work properly). Inkscape is okay but is a little too advanced for kids and doesn't come with clip art. There's currently no build of Krita for the Raspberry Pi so I haven't been able to try that.
I find LibreOffice to be very buggy when trying to design signs and banners (at least on the Raspberry Pi, some features don't work properly with huge fonts, and the option to print a large banner spread across multiple pages doesn't seem to work properly). Inkscape is okay but is a little too advanced for kids and doesn't come with clip art. There's currently no build of Krita for the Raspberry Pi so I haven't been able to try that.