Dupont "Lannate is lightning" Lannate advertising promotional object, probably paperweight

I picked this little piece up at my Grandmother's estate because I found it humorous. It is an advertising promo from Dupont for a product called Lannate, which I see to be a bug killer. It is clear plastic with a white base. It has a thin plastic insert inside (does not come out) which has the Dupont logo and the words "Lannate is lightning" with a lightning bolt crashing down on a dead caterpillar, type bug which I'm pretty sure is real. I think the item might be a paperweight. It is 4 1/8" tall and the base is 1 3/8" square. This is a really neat promo and I'd really like to get a value range on it because I feel it may be rare but I'm not sure.