If you want the asset, backpack it.
Here are some assets from Scratch 1.4. You don't have to give credit because these are from old Scratch. In this project are: sounds that aren't in Scratch 3 (I may be wrong for some), costumes that aren't in Scratch anymore, the old variable displays, the old default text for costumes, and one backdrop that was recently removed from Scratch 3. More 1.4 assets will be added in a new project if needed. If you want a custom variable display, old costume, old backdrop, or sound please request it in the comments.