The provided source material details a range of free digital assets available for download, specifically Photoshop layer styles, PSD files, and templates for designing buttons. These resources are hosted on various design resource websites and are intended for use in graphic design, web development, and marketing materials. The information focuses on the availability, types, and licensing of these digital assets, with no direct connection to physical product samples, promotional offers, no-cost trials, brand freebies, or mail-in sample programmes across categories like beauty, baby care, pet food, health, food & beverage, or household goods. Consequently, the content of the source material is not relevant to the core subject matter outlined in the system prompt, which requires an article about free samples and promotional offers for UK consumers.
The source data consists of metadata and descriptions for downloadable files. For instance, Source [1] describes a pack of 43 Photoshop layer styles for button design, licensed for free commercial use. Source [2] lists numerous PSD files and style packs, including items like "Free 6 Colorful Buttons PSDs," "Glossy layers styles," and "Web Buttons," though it lacks a coherent narrative structure. Source [3] provides information about free button-making templates for Photoshop, specifically for use with button maker machines, and includes a video tutorial. Source [4] is a list of various web button resources, such as "Big Download Button," "Shiny Web Buttons," and "Social Media and Email Buttons."
All factual claims in this summary are derived directly from these sources. There is no information in the provided chunks about eligibility for physical samples, geographic restrictions, expiration dates for offers, participating brands, or shipping policies. The sources are primarily third-party design resource sites (e.g., myphotoshopbrushes.com, brusheezy.com, americanbuttonmachines.com, webfx.com) rather than official brand websites or verified sign-up pages for sample programmes. Therefore, the information should be evaluated as design resource availability, not as verified promotional offers for consumer products.
In summary, the provided source material exclusively documents the availability of free digital design assets for creating buttons. It contains no data relevant to the requested topic of free product samples or promotional offers for UK consumers. A comprehensive article on the latter subject cannot be constructed from the given information.