Speaking of Smalltalk an alternative is to run Squeak and/or one if its subprojects: EToys, Scratch. I haven't tried them in a while but they are designed for

Speaking of Smalltalk an alternative is to run Squeak and/or one if its subprojects: EToys, Scratch. I haven't tried them in a while but they are designed for kids to explore and have high ceilings. Scratch particularly looks pretty cool.