An article in an old FWW mag in the reading room inspired me to try these.
As always, mistakes were made and lessons learned. Next time, a harder wood will be tried.
Next time, I will not scribe a line on the outside.
These are in pine. The pins were darkened for contrast.
The top of the heart was made with a 5/16 inch bit in a brace. A drill press could also be employed if there was a working one in my shop. The bit has to be sharp to prevent tear out. Be careful when coming back from the underside not to push through and cause tear out. Also found boring the holes from right to left causes less problems.
jim