How about using these as a substitute for stones at Tomica construction sites or Thomas's coal in the Coal Hopper Set? Brand new, unused. Gloves are used for refilling, but please understand that this is amateur refilling. Plarail Big Loader Thomas the Tank Engine: Load and Unload Set Plarail: Thomas and Merlin's Coal Hopper Set Plarail: Playable Engine! Big Thomas Tomica World: Moving Town! Load and Unload Construction Site Tomica Town: Play Charge Series: Construction Site Tower Crane Tomica: Action Construction Site Tomica Town: Build City: Power Crane Construction Site