The BRBS_Poker series shows a joinery alternative to forge-welding 
the business end of a poker.  This is really all in fun since such 
a stunt is of dubious practicality for a poker.

Poker_03, 04, 05 show the complete business end of the poker.  The 
hole in the 1/2" square poker is slot-punched, upset to round, and 
drifted square.  The hook is 5/8" square.  The tenon is forged to 
1/2" square, upset in a bolster plate, and fitted to the hole.  
The hook is shaped, held in a vise, and the tenon is peened into 
the hole. 

Poker_SlotpunchedUpset shows the tool used to slot-punch the hole.  
After the narrow slot is made, the bar is upset which forces the 
most material around the hole.  If you simply drift the slot round, 
it tends to stretch the weaker material next to the slot.  That is 
unacceptable loss here because the square drift is going to cause 
some loss in thickness, so we need all the material we can get.

Poker_DriftedLarge shows the tool for drifting the punched and upset 
round hole into a square hole.  By using this tool, the hole is larger 
on one side, so when the tenon is peined, it will REALLY lock the hook.

PokerHookShank shows the 1/2" square hole used to shoulder the square 
tenon on the 5/8" stock.

PokerHookShankFit_02 shows the 1/2" square tenon going in fairly snugly 
to the 1/2" square hole in the poker.

PokerHookShankFit_03 shows the gap around the shank which will allow it 
to swell when peined, locking it tightly to the poker.

PokerTreePull is a joke, of course.  The idea is that the hook, instead 
of being weaker than a typically forge-welded hook, is in fact so strong 
that it pulled a tree over rather than the hook breaking.