Search for craft ideas involving small wooden logs and you find plenty of them: candle holders, name plaques, miniature planters, garlands. Some are pleasant. What most of them do not mention is that a complete construction set is worth considerably more as a construction set, and that cutting one up is a decision you cannot reverse.

Complete sets are rarer than they look

Most second-hand boxes are already short of roof boards, chimneys or the long logs that everything depends on. A full set with its gables and slabs intact is genuinely useful and genuinely harder to find. Turning it into a wreath because it was sitting in a cupboard destroys the one thing that made it valuable to the next child.

Buy craft dowel instead

If the project needs short lengths of round timber, a length of plain dowel from a hardware shop costs very little and cuts to whatever size you want. It has no notches, which most craft projects do not need anyway. Keeping a set from a range such as Lincoln Logs whole and buying two metres of dowel is cheaper than the craft blog implies.

What is fair game

  • Genuinely orphaned pieces from a bag with no matching set.
  • Logs already split at the notch and unsafe to build with.
  • Duplicates left over after merging two incomplete boxes.
  • Pieces from an old painted set that should not be played with anyway.
  • Offcuts and spares bought loose specifically for making things.

Old painted pieces need care even for craft

If the offcuts come from a set made before the late 1970s, assume the paint may contain lead and do not sand it indoors or with a child in the room. That rules out most decorative projects that involve stripping colour back. Sealing rather than sanding, and keeping the item out of reach, is the safer approach if you are determined to use them.

Cutting wood safely

Small round stock rolls under a saw, which is how people cut themselves. Hold pieces in a bench hook or a clamp rather than by hand, cut with a fine-toothed saw, and sand the ends before anything goes near a child. None of this is difficult, but doing it on a kitchen worktop with a bread knife is a genuinely bad idea.

Reversible projects beat permanent ones

A seasonal display, a photograph backdrop or a model built for a school topic can all be made without glue, using removable putty at the corners. When the project is finished the pieces return to the box. That approach gets you the decoration and keeps the toy, which is a much better trade than it sounds.

What to do instead with a set you have outgrown

Pass it on. A complete or nearly complete set is welcome at a nursery, a childminder, a charity shop or a family with younger children, provided it is clean, free of splinters and not from the painted-toy era. That is a better outcome for a functioning toy than a garland that will be in a bin within two years.

The sentimental exception

There is one case where cutting up is defensible: a set so damaged, damp-swollen or incomplete that nobody will build with it, belonging to someone who has died and whose family want something to keep. Making one object from it is a reasonable thing to do. Doing the same to a perfectly good toy because a photograph looked nice is not.