Add spaces: Puffinswithsand-eelswerestillseenattheendofthemonth.

Answer: Puffins with sand-eels were still seen at the end of the month.

Add spaces: CombisystemTelescopicHandle210-390cm-Gardeningtools

Answer: Combisystem Telescopic Handle 210 - 390 cm - Gardening tools

Add spaces: PrettyFrenchblueandyellowplexiglassshopsignletter.

Answer:
Pretty French blue and yellow plexi glass shop sign letter.