For those who fix or are thinking of fixing their toys, these items coming to Aldi may be of interest. They are quite cheap. The hand drill (looks like a pin vice) especially caught my attention due to the price and you can go from 0.6mm to 2.5mm - great for making holes for small metal rods that you can make from straightened ballpoint pen springs, wire or paperclips, or use proper hobby rods, for reinforcing areas that glue won't hold alone.
Hobby tools.
More info on the hand drill.
The hobby vice is also quite cheap, but the jaws might need a rubber (or similar) layer to prevent plastic damage.
The Bondic UV plastic welder is interesting. I wonder if UV glue is useful for glueing broken TFs. It could also be useful for creating precision plastic nubs. I've used superglue nubs for loose ball and socket joints to stop limbs dislocating on small TFs but with this the glue doesn't harden until the UV torch is lit.