A Christian emblem I like

I’m thinking of options for an emblem for the new church I’m planning. It should be

• distinctively Christian, but not a cliché
• simple enough for someone to draw free-hand (a standard I’ve seen for picking out graphically-successful flags)
• correctly displayed in black and white

I’ve suggested the heptagram before, but that’s a bit obscure. I’m warming up to a knotted cross.

• they’re used in Ethiopia (consider this lovely one) and Armenia, the two earliest countries to adopt Christianity.
• they may have influenced Celtic knot themes.
• they’re graphically interesting.
• the woven character is also a vibrant image of the interconnectness of humanity and creation.
• the squared-off design has a modern look.

Ah, but the cross as I envision it doesn’t exist as such as a logo. I’ve seen styles I like made a processional crosses, but these are obviously artefacts and in any case the lower (southward) bar it taken up with the place where it’s mounded on a staff.

I imagine something not unlike four Endless Knots — itself a Tibetan Buddhist emblem —  interlinked in some way at the middle.

If I can be drawn with forty interstices, that would be rather auspicious.