I think a good idea for a higher tier weapon further on down the road is glass. The main reason being if there’s cans all over the yard, why not a glass soda bottle as well, or maybe an old jam jar. You would need to use a high tier hammer to break into usable shards. It could be used for blades, spear tips, or even arrow tips potentially. This is just my two cents on better weapons, while an insect pincer might cut well, a glass blade would cut even better. Though I do like all of the insect tools, I think some more items from humans would be cool. Another potential candidate, but less likely to be randomly found in a yard is a sewing needle.