Spline shapes

Very similar to the post before this, the basic room renders, these shapes are all made up of splines and using various options in the Editable Spline modifier panel.
I see using splines as building up shapes and combining these shapes to create an object.
The options union, intercet and subtract (which i described in the previous post) help with quickly creating the shape you want.

The key was just a single spline circle for the top, then using the line tool to create the other part, then extruding it out without capping the top of the 3d object.

Keyhole was just a circle and a rectangle union together and used subtract to cut it out of the main circle.

Wrench i used the vertex option to create the smooth edges by right clicking and choosing smooth, using a rectangle and subtracting it from a circle to create the part at the top where it goes inwards.

The rectangle necklace was very simple, just smoothed out another rectangle and subtracted it out of the main rectangle. The wire was created using a spline line and circle and using loft.

The odd looking dog collar is just 5 circles and a rectangle, unioned together.